Whenever I upvote someone's comment on youtube it seems like it has no effect - likes counter is not increasing (I though it is cached but even if I come back later nothing is changed). Do I need to have some "rep power" for upvoting or comment vote counter is just not 1-to-1 with votes (like 10 votes is required for +1)?
I can duplicate this as well. I'm a logged in user on YouTube and in this video...
... I've upvoted this comment posted around 7/28 at 5 PM Pacific
I just caught the White Queen/Black Queen reference when the poodles were playing chess. Awesome.
... multiple times with no effect. My reply on the other hand went through immediately!
I suspect the votes are cached to an extreme degree? I'll check back later and see if it "went through" or not.
edit: The votes did take effect! It took about 12 hours though.
It does fire off a request to youtube.com/comment_voting with the proper parameters. My guess is the server isn't always able to keep up with the incoming requests.