Hi,
SEO is a big sector, and this is a short domain.
I like your idea of a âchatâ site.
But Iâm not sure if âallâ is your best choice for what you are contemplating.
Again, it is short, but not descriptive for your interest. Words like forum, chat, talk, etc. would work quite well. You may want to consider a more descriptive domain; just a thought.
Good luck.