If the admins of your new instance are okay with those instances, of course! For example, here in lemmy.ml I get posts from lemmygrad.ml, which is blocked by some other instances. You could also make multiple accounts, e.g. keep your beehaw.org account and make another one in the instances you want to see. Hope this helps!
There is a certain risk that a server that federates with really questionable instances might get blocked by Beehaw and other well moderated instances as well.
The fact that you're asking these questions and treading a fine line that could be truth or trolling that I'm having a hard time figuring out signals to be that you might not be a good fit for our community.
Please be on your best behavior around here. If that's something you can't commit to, then this isn't a good fit
It's inherent to the architecture of the system; you can spin your own instance and not have to worry. People can still block you however.
It's different than traditional social media, and for people looking for something identical to that but open are going to be hard pressed to have something usable.
The technical aspect of spinning your own server will be prohibitive to a lot of people unfortunately, but there is some documnetation online for that
No, it's rather unlikely. Especially if you use some DNS service that blocks some ICANN WHOIS lookups (usually gives out information that you enter when registering the domain name), you'll be fine.
Domains can be cheap, but will need to be renewed. A VPS for hosting can be cheap or expensive, but running it on an older computer would be a good bet.
The benefit of a VPS is that you don't need to worry about using your own IP address.
In that case, it is probably because Mander hasn't indexed the community yet. For that to happen you have to enter the address of the community (like example.org/c/some_community) in the search field (upper right corner desktop, expanded menu mobile), then it is fetched and you should be able to subscribe there.
while filtering under communities on mander.xyz. If it gives back nothing (Instead of "no results") after 10 seconds and a couple tries that means you were successful at indexing it. Then you can access it through