I just (in, say, the last couple of days) got something like 50 downvotes, presumably all on old comments since I don't see any sign of a lot of downvotes on recent comments of mine.
This is the kind of thing that has got people banned in the past; if any moderator happens to be reading this and considers it worth investigating, I'd be interested to know the result.
I think that you should have PMed moderators instead of posting about it in an open thread. You can get -50 karma, if, say, 5 people downvoted your posts to Main or meetup posts.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.