Imgur is one of the last social media platforms which provides up- and downvotes. They've new owners and first the total counters for both disappeared on comments. Then on posts itself. Now there is only one counter with a calculated difference between up- and downvotes. You need to open a menu on every single post and comment to see the totals and figuring out if a post/comment is controversial.
Votes are not an elaborate critique but they can provide the posters and viewers a hint. Regarding elaborate critique, it usually hurts and is hard to accept. But I can learn from it! And again, votes are a hint. Regarding Stackoverflow, they did a good thing in limiting upvotes a little (prevents overuse without justification) and downvotes (hurts you're own reputation). This makes me think twice ;)
It's strange to see imgur as the social media platform it has become. I still think of it as Alan's gift to reddit – a simple image host that doesn't suck.
I imagine at the beginning of the socialmediaification it was a curious place full of uncategorized paralel discussion to whatever content imgur hosted for redditors.