well, having personal redefinitions of English words and complaining that people are not sharing does not seem to be an improvement to me

note that this bot edit was discussed, if you think that it should be stopped (at least this replacement) feel free to start thread at https://community.openstreetmap.org/ to get more feedback

(if there will be support for stopping that replacement or mixed reaction, I will stop and continue only of there is no response or clear support)

but as far as I see 

> But I interpret vacant as "free to rent" or "not rented by anyone"

is not something more widely shared, vacant space can be already rented and new owner preparing it for new use (in some cases work in a given space would not start yet)
