To not import mastodon contacts if you are keeping a separate account. I see the same posts when I log into both platforms because I inadvertently did that. If I would’ve known when I set up my profile, I would have kept them completely separate.

That groups can be addressed with an exclamation point or an at-sign. But I don't understand the difference!

How to adjust notifications to see replies and mentions. I believe all I see now are follow requests.

Privacy of posts -- is there a way to restrict who sees one's posts? Can I restrict viewing to those in one circle or another?

How to choose a node/server and a list of suggestions with short description (how stable, hosted where and by whom). The directory on friendi.ca is crazy slow and complicated, luckily i found one that seemed ok ln the first page… Most nodes list very few info and also for .world I needed to go check the profile of the admin to get pertinent info. With disclaimers of course that you’re not responsible… but otherwise it gives a huge headache if you don’t have a friend who tells you ”take this one i have it too”.