Maybe that is exactly what we need to do, to spare them from the indecision. Recommend them to a specific instance to sign up and follow you (if in doubt, the instance we use). I suppose we can mention there are lots of choices, and those who are inclined that way will want to explore other servers, many are not, and for them pointing them at a server may be best.

I'm just thinking that trying to say there are lots of networks, each with lots of servers etc, may be the problem.

Alternatively, should ask them some questions like do they want to post short format or long text format, and take into account a specific interest they have, and then we still recommend a server instance to them to join.

So for fellow ham radio operators, I just pointed them all to the ham radio Mastodon instance and said sign up there.