I’m not sure I’ve made 3 accounts and I’ve had issues with 2 of them going down completely so far. The account that has yet to let me down is this lemm.ee one but I suspect its probably a matter of time.

I’d suggest signing up to a couple of instances you can use a program called Lasim to sync communities and blocks between them.

Honestly I’d just pick the instances that appeal most to you, karma’s not a thing here so nothing is lost switching really.