Meta image and description sharing account or channel url

[kimsible]

Sharing instance.tld/accounts/username or instance.tld/video-channels/channelname only give the account or channel display name in facebook open-graph (https://developers.facebook.com/tools/debug/) :

and nothing with twitter card (https://cards-dev.twitter.com/validator) :

We should have the display name, channel or account description and the avatar as an image.

I also propose to add a glyphicon-share aside the glyphicon-copy, to copy the channel or account url, or maybe something more explicit.

We could make easy redirection for easy sharing, for example : https://myinstance.tld/u/kimsible will redirect to https://myinstance.tld/accounts/kimsible or https://myinstance.tld/video-channels/kimsible.

What do you think ?