You are correct. A lot of the internet is built on trust. This is no exception. I suggest having an account in more than one instance so that you are not too vested into 1 place.
No its not really as bad as that at all. The disk space is linear in that way but disk space is cheap. All the rest is not taxed heavily by federation. Do the big costs like CPU dont scale up like that.
Would help if users spread out over all the running servers because problem is just a few lemmy servers have all the users. For example the instance I run would be a simple proxy to use for all the content and then would mitigate issues when a big server had problems since just parts of the fediverse would be affected from the users pov.
I asked lemmy.world admin about the missing ones and he is going to add them later tonight. They went missing due to the recent breach and have not been added back yet that is why there is a difference.
Actually all the instances were from lemmy.world. lemmy.world just removed some recently for some reason (unknown to me) and I havent removed them from my list yet. I normally just sync the lists every now and again. I dont have any personal views, i just pull the list from lemmy.world and let them decide. If there is a difference it was because eith er my list is slightly out of date by a few days, or the bot script found something ans was run at a different time than they ran it. Essentially I dont host any content so there isnt much to moderate, thus my views are largely irrelevant.
There is a script the admins of various instances have shared to block instances that have bots, as well as the normal making new sign ups harder for bots. If there is anything suspicious I normally make registration require validation as well until it can be resolved.
You are correct. A lot of the internet is built on trust. This is no exception. I suggest having an account in more than one instance so that you are not too vested into 1 place.