If relays are called relays because they relay messages, why does my profile have varying amounts of notes depending on which relay I pick?

I've noticed some clients only publish to one relay, some clients publish to every relay you define. Is there a sweet spot?

If so, what is it and how do we pick relays to get the most engagement out of the network? I love being able to curate my own feed, but it seems fragmented.

#nostr #grownostr #asknostr