To my knowledge, there is no coordinated sharing of IP addresses between instances. Different instances are run by different people, so it’s very unlikely the IP address will matter.
A new username on a new instance is likely enough that no one will ever know, so long as your posts or comments don’t give you away.
Well, if you’re not a dick you theoretically shouldn’t get banned the first time.
If you are a dick, I imagine you’ll run out of instances pretty quickly, using that strategy. You could keep it up for a while, though. I do worry about the reckoning with spammers that will eventually have to happen on here.
There are already spammers all over Lemmy. There’s a coordinated effort to remove spam, it just doesn’t include IP addresses (which aren’t that helpful because they change and with CG-NAT entire neighbourhoods can share them, and with VPNs people not near each other can - plus if you have a dynamic IP then restarting your router can give you a new one).
Ah, so you do know how it all works.
During the Reddit exodus, at least, there were a lot of instances that required very little for you to make a new user. I’ve put down the lack of mass abuse (that I’ve seen) to the small level of traffic, but that won’t last. The standard thing is to require an email address, and for email providers to require either another email address or something like a phone number with a meatspace papertrail. That way, they can bother an abuse department which can bother other abuse departments.
Of course, there’s still ways around it, as you probably know, but they’re not free, and so a Nash equilibrium is achieved where stuff is usable.
