[igneo676]

Choosing an instance limits you in two ways:

1. The rules of what you're allowed to post

2. The other instances that they choose to federate with (typically a block list that is public)

If you find yourself limited, common advice is to create more accounts (alts) to work around those limitations

I've also seen people host their own instance and get around the lack of federation (but you limit the visibility of your posts from organic traffic)

[altantiprocrast]

> The rules of what you're allowed to post

Additionally, most popular generic instances allow you to post anything except for ads, explicit hate, or nsfw without a warning.