It seems that OSMCha is flagging changesets with aeroway=parking_position tag. This seems to happen for pretty much 90%+ of airports around the world, and there are not many exceptions that I can find.
Examples of changesets that were flagged:
https://osmcha.org/changesets/64857285/
https://osmcha.org/changesets/51902994/
https://osmcha.org/changesets/81249642/
https://osmcha.org/changesets/51893250/
https://osmcha.org/changesets/35469079/
(can probably link 5000+changesets here)
Then we also have changesets that have been completely removed from OSMCha?:
https://osmcha.org/changesets/28586586/
https://osmcha.org/changesets/35469079/
The exception of a changeset which didn't get flagged, and is now correctly displayed on MapBox:
https://osmcha.org/changesets/39639479/