Everything tooted by user is the sole responsability of the user. The server is located in France, so your free speech is protected by the French Constitution of 1789, (you know when we had our revolution and cut the head of our king and queen) and also by the European Convention of 1950.
The limit to this freedom is if you call for violence, defame someone (dox) or post pictures of naked little kids.
The admin has the right to terminate or silence your account at any time for any reason if deemed necessary. This instance is probably the more free speech friendly in the fediverse, so as long as you respect the rules written above you should be fine :)