wrote:
Anyone want to take on responsibility for setting up and
maintaining an open-source, Wiki-type database for soaring pilots in
the U.S.?

The turnpoint exchange seems to be a good place for that kind of info.

The Colorado databases already have questionable places named with a
"?" at the end of the name. Comment field might contain a date of most
recent observation. I fly over a few such places and make a mental
note for next time that it still "looks OK".

-Tom