Verified Check Marks Add a verified check mark that can be given to certain channels. Similar to the one on my channel but a custom image instead of an emoji.

Groups YouTube used to have social groups back then.

Remove or change time for changing username You can mistake while typing the username or figure a better one after changing. I don't see any good reason why it is here. Also 6 months seems to be a bit long time. Even youtube allows to bypass this limitation for example by resetting G+ account.

Point System? Something like Minds.com to allow users to promote their posts in exchange for cash or brownie points.

Analytics You should have analytics on the platform just like Youtube does. It doesn't need to be that complex like theirs since it's not a big traffic website. Just have simple column list calendar on how many views each day on a video or something.