Hi dufekin, often (>100 changeset last year) you insert the invisible char (0x7F) into ways in USA. The only purpose of this ASCII is to be ignored. Different OSM tools handle it different and it causes sometime visible Artefacts (if e.g part of name tag) or the tags are not useable, because DB cannot handle it (e.g. overpass-turbo). Please try to avoid this. Depending on used editor you cannot see it, but ID is able to show it. In this changeset, you put it into "ref" value.
About 99% of 7F in USA are made by you! Please try to avoid it. Thanks very much, Alex

Hi DenisJu, in node/4730280996 yoe put wikipedia=1160. I assume you mean ele=1160. KR, Alex

Hi EzekielT, please follow the OSM wiki (wikipedia="lang:Name"). see osm.wiki/Key:wikipedia
Thanks, Alex

Hi g., please follow the OSM wiki, wikipedia="lang:Name", relation/7077614.
osm.wiki/Key:wikipedia#Examples
Thanks, Alex

Hi vihiker27, what means key="+" ?This seems to be a Typo (as this key is unique on the planet). KR, Alex

Hi w., what means "2=level_crossing" in way/479778224 ?
Please fix. Thanks Alex

Hi 4b696d, why do you added the designation tag to an airport in spain (relation/2614519) ?
OSM wiki tells its a higway-tag!
osm.wiki/Key:designation
Could you explain what was your intention OR fix it?
Thanks, Alex

Hi vigneron, please wollow OSM wiki (wikipedia=lang:Name), see osm.wiki/Key:wikipedia#Examples
Thanks, Alex

Hi bermiego, please follow the rules from OSM wiki (wikipedia=lang:Name), see osm.wiki/Key:wikipedia#Examples
Thanks, Alex

Hi Weltstaat, what means #=yes ? Could you fix this for way/334711024 . Thanks, Alex

Hi Schönberger, please follow the format described in osm.wiki/Key:wikipedia#Examples .
wikipedia=lang:Name (not http..).
Thanks, Alex

Hi aromatiker, please follow the format described in osm.wiki/Key:wikipedia#Examples .
wikipedia=lang:Name (not http..).
Thanks, Alex

fixed/removed type (not typo) of node

Hi fatehah ali, please do not enter empty keys.For each key you can finbd help here:
osm.wiki/Key:name
Thanks, Alex

Ich korrigiere immer anhand des OSM-wiki, und suche Fehler via taginfo. Wobei ich mich meist auf das Format beschränke, und nicht die 2nd-language entferne (obwohl sie eine Ausnahme sein sollte), um niemanden durch Löschung seines Tags zu verärgern (ausser es ist ein offensichtlicher Tippfehler). Evtl. könnte man eine automatische Korrektur oder Warnungsmail an den Verfasser schreiben, bei typischen häufigen Fehlertypen. Kennst du dich diesbzgl. besser aus? VG, Alex

Hi samely, you entered 8x tag "1"="yes", e.g. way/379682013. This seems to be a typo, as it has no meaning. Could you please fix it? Thanks, Alex

Hi loumoi, you entered 8x ways/buildings having tag "1"="yes", e.g. way/473514462. This seems to be a typo. Can you fix this, as it has no meaning at all. Thanks, Alex

I changed it to name, as the neighboor-ways. Alex

Hi johnny, what means "1"="Calzada Jardín Corona" ?
see: way/467271122
Could you please fix this? Thx, Alex

Hi Jeffrey, what means tag "2=80" in way/476773448 ?
I made it a note. KR, Alex