Ok I'll use simpler language. This area was put as a park. Because it is a park. The City of Long Beach thinks this is a park. They have a description of this park on their web site. Many parks are really just grassy areas. But this grassy area is a park. Please leave it.

The problem is that someone simply hit the "fix everything" button on the JOSM validator for a very large number of items. While this did probably do the right thing in many cases, it also did the wrong thing in many cases. The JOSM validator is not a tool to be used indiscriminately like that, and I had to revert the whole edit (I couldn't go through 17k things manually and check which of them were good - that's the task of the person using the validator).

1. You shouldn't do that (re-use node IDs), 2. here's the Achavi link that shows the broken changeset: https://overpass-api.de/achavi/?changeset=47972480 - this is not a temporary rendering problem, at least three ways were totally broken in your changeset.

Are you saying that you have re-used node IDs for something entirely different in another area?

Please observe the following rules:
1. Do not put advertising copy in your changeset comment. A good changeset comment is "added Qtrust insurance", not what you wrote here.
2. Do not put advertising copy in the "description" tag or any other tag for that matter.
3. If you upload a shop, office or other point of commerce, ensure to place a proper shop, amenity, or office tag that tells people what this thing is. Something that just has a name and a web site is useless in OSM.
I had to remove your contributions because they were blatant advertising. Factual information ("there is an insurance agent at this location and the name is X") is acceptable in OSM so if you want to re-add the information without advertising that would be ok.

The move of the nodes in this changeset was clearly a mistake and has temporarily led to a broken map display. See http://www.remote.org/frederik/tmp/47972480.png for an illustration.

Sebastic, if you delete polygons and someone else undoes your deletion, the correct approach is to discuss the issue, not stubbornly delete them again.

Can you explain why you reverted this edit? Did it break anything or was it otherwise wrong? Please make it a habit to explain such things directly in the changeset comment when you revert something unless it is totally obvious.

What is wrong with you? For the third time now I have asked you to explain why you consider this to "not be a park" when the Long Beach municipal web site clearly lists it as a park - and you would think they should know better, no?

Curt, could you explain why you believe this is not a park. I found this on the web http://www.longbeach.gov/park/park-and-facilities/directory/marina-green/ which seems to say that at leas the city of Long Beach believes it is a park.

You appear to have deleted a lot of data in this and other nearby changesets. May I ask why?

The bulk of ti-lo's motorcycle adjustments have been reverted in osm.org/changeset/47664678 and I recommended that a discussion is held on the tagging mailing list before changes are re-introduced.

Ups, jetzt hat Nakaner fast das gleiche geschrieben und war auch noch früher dran.

streckenkundler hat recht; die genannten Beispiele sind klare Indizien für einen "mechanischen Edit". Der liegt auch dann vor, wenn man z.B. in JOSM alles sucht, was "addr:city=a" hat, und das durch "addr:city=b" ersetzt. Überlasse doch diese Korrekturen Leuten, die mit Sorgfalt und vor-Ort-Kenntnis vorgehen, anstatt mit dem Rasenmäher über das Land zu gehen. Siehe auch osm.wiki/What%27s_the_problem_with_mechanical_edits%3F

Hello Zowie Polie, this changeset deletes a lot of valid data. Maybe you are not aware that your edits actually affect every user of OSM, not just the map you are seeing. Please stop breaking the map.

In this changeset you fixed the coastline of Gosti island, but there is a lot of extremely jagged other coastline nearby that you did not touch. May I ask why you focussed on this one island? Have you made this edit as part of a MapRoulette task, and if yes, have you been instructed by anyone to do this?

You have moved the nodes making up this island osm.org/way/224776118 but neither Bing nor Mapbox imagery actually are good enough to even see that island. Your source specification ("Bing") must have been a mistake. Can you clarify your source? Have you made this edit as part of a MapRoulette task, and if yes, have you been instructed by anyone to do this?

You aligned this island with Bing but you left the nearby, larger island untouched even though it, too, is very much out of sync with imagery. Why the focus on this one island? Have you made this edit as part of a MapRoulette task, and if yes, have you been instructed by anyone to do this?

You modified this island but left the glacier in place that now cuts right through the island which can't be right. Why the focus on just the island geometry? Have you made this edit as part of a MapRoulette task, and if yes, have you been instructed by anyone to do this?

You claim to have used Bing imagery for this changeset, but Bing imagery just shows a blurry cloud of white and you can't even see that there's supposed to be an island here so the source specification must have been a mistake. Can you clarify your source? Have you made this edit as part of a MapRoulette task, and if yes, have you been instructed by anyone to do this?