Be wary of listening to unasked for advice. If you want to move from Github to Gitlab or Sourceforge or whatever you want; that's your own damned decision.

Kinda feel sorry for the person who posted this article because they worry too much about someone who was downvoted on reddit.

Opinions are like assholes; everyone has one. If you want you can listen to their opinion and if you don't like it politely tell them to stop and you are not interested. If they can't handle that; you shouldn't be talking to them.