Same. I'm @kel on github and twitter but that's taken on here and gitlab. I emailed to ask since it was just being squatted on but gitlab told me no.
I'd pay money to have my username, too.
GitLab.com is growing fast, but most people should be able to still claim their username.
Of course, you always have the option to run your own instance relatively easily [0].
(I'm not sure why I got downvoted into oblivion. I stated my honest opinion--I haven't signed up for a lot of services where I can't use the username I want.)
Worse things happen at sea.