So basically, the main dev of gab welcomes that they aren't blocked by default. Please block them in the #mastodon project code, in #tusky, #fedilab and all other fediverse apps. He just aims to be able to invade anyone's home, the devs have a duty of stopping these nazis.
https://gab.com/robcolbert/posts/UVp1c2hRbC9QaVNxUlZmazhFbUtsdz09