#17297: TorCheck fails on new exit egress IP not in exit DB, confusing to user
https://trac.torproject.org/projects/tor/ticket/17297
As said three days ago before OP...
No, I'd consider it a technique to avoid having
your exit put on braindead tor-hating consensus
scraping blacklists... a feature not a bug... with
the great side effect that such exits are usable to
circumvent similar braindead / hating censorship
directed at tor users.
(Thus exit operators my explicitly want to set
this up and could care less what check.tpo
and whatever else say, or don't say, about their IP.)
Exonerator is for operators, that's their choice there.