There may not be many users looking for a ten minute game, thus the wait. As for the first thing, yea, it's kinda absurd but the site attracts users who want to spam, I guess that includes Live as well as forums. Sorry. :/
As a new Chess.com member you are not yet able to chat in this room (to prevent abuse).

It's nice to watch 2x10 minute games played by higher rated players, they are very good for learning. 5 minutes and faster are useless in this respect because before I can think about a moved piece or a position the game has already evolved, so it's just as entertaining as watching 2 computers play against eachother. I agree with the writer of this post.There are not many 10 minute games played and you have to click fast on them or else you miss the opening. 15 minutes would be my favourite to watch, but I guess nobody plays 15/0 games anymore.

I also think that very fast games are not good for learning because many mistakes are made due to time pressure. But that is a different topic.

Pretty sure if you verify your email address you can chat. Otherwise, you have to wait.
I verified my email. Someone told me the restriction gets lifted after 2 days and 20 games.
I'm just saying that all the new members would've migrated to a different site by then. That probably explains part of the reason why there are so many dead accounts on here.

I joined September 12 and I have played fifty games, mainly crazyhouse, and I still can't chat. It just keeps telling me: As a new chess.com member you are not yep able to chat in this room (to prevent abuse) Could it be a bug?

"That should go away in a few days."
No, it doesn't. I'm a member for years, and I still have the idiotic chat blockage.
"Pretty sure if you verify your email address you can chat. Otherwise, you have to wait."
My emailaddress is visable in the settings. How would it not have been verified? Anyway, I don't see a way to ask for verification.
"Oh and about taking so much time to find games, probably as there aren't many your rating level on a lot."
On lichess.org, I've never ever stumbled on not getting an opponent fast. Actually, I think Lichess has more active playing users than chess.com. I've never seen a chat blockage on lichess. Maybe that's why it is more popular. Also, IMHO, moving works better on Lichess than on chess.com. Sometimes you have to right click to disable a (my chess.com) memorized click. Especially, in fast games, this is unwanted behaviour.
I tried to ask a question in "Help & Support" and got this message. Honestly this sounds absurd to me. If anyone has some questions about the site, it is the new members who are trying to figure their way around the site. Not members who are already experienced.
Forbidding the newbies from asking questions is hilarious.
And the question I wanted to ask: It's taking about 5 minutes for me to find a 10 minute game every time. Is that normal? I thought Chess.com is a pretty popular site with a lot of users and finding a game should be very quick?