It won't affect RCsocial.net. I have no plans to ban Gab. If Mastodon forces a ban, I will remove it from our instance. Should some clever way be found to make that alone insufficient and the workarounds too difficult (unlikely but possible), I would migrate us to the Gab code base which looks like it will have a lot more development behind it anyway.
All that said, of course there is speech I disapprove of on Gab. There is hateful speech that I disapprove of on mastodon.social too. Although their definition and mine of what constitutes "hate speech" is different. That is exactly why free speech is important.
In general, speech should not be regulated by those in control but by users (with few exceptions).
RCsocial.net — a friendly social networking space for those with an interest in Catholicism.