To me, a user's age is irrelevant. We're all here together.
It's how a user interacts with others that indicates their maturity, so from my perspective some kids are more mature than some adults, some adults are more mature than some kids.
I think the origin of the two streams mentioned here came out of the notion of upvoting etiquette. Vote however you like, up, down or not at all.
imgflip.com/signup Some users notice, some don't notice, other users don't care either way.
One thing I'll add. The owner of Imgflip told me a while back that users who have multiple accounts to harass others or to game the points system are cheating. If you think that's happening, you can feel free to send in an email to
[email protected] with specific details who you think is doing that and where it's happening.