@delroth Mhm, that makes sense, but it's really weird that it's such a large difference (never over years vs. multiple times within a week).
When you say more limited, do you mean that the target doesn't see the message before they agree to the invite or something else?
@robryk correct, that's what I meant (and I suspect most people don't just accept completely random invites - or just the first one of a wave - but not sure :) ).
@robryk I suspect a combination of "higher barrier to entry" and "less return on investment" (due to invite spam being more limited than message spam)