I know gitlab has an option to log into your github account and I believe you can copy everything down.

I use gitlab pretty much exclusively and I prefer it to github by a large margin.

I do maintain a "public"(you likely won't come across it unless you know about it) gitlab server and host a few people's repos including my own. I mean you have to trust me instead of github, but the server is always up to date, and I won't take down anything that isn't illegal. If anyone is interested, feel free to shoot me an email.

Glad to hear you like the import function. It works pretty reliably although it can struggle when someone imports 400 repo's (10GB+) with one click of the button, but we're working on that too.