See the last open thread - several people (including me) have been victims of a mysterious mass upvoter who has gone through everything we've posted in the last month or so adding +1s indiscriminately up to about +30 to +40.
Personally I suspect it is a psychological experiment, examining the difference in reaction between this mysterious mass upvoter and the recent mysterious mass downvoter. Or, yknow, a troll.
Or someone who read one of your comments, like it, and then read others and liked them as well.
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.