Yes?

Because people have overlapping accounts

Bit late to this but I find it both sad and annoying to have a continual stream of reposts from Reddit. No one is engaging with them. I’ll chime in, to an empty room. OP is on another platform.

Pointless.

Imho, reposts have a positive impact. Usually, a frequently reposted content means that it is something important or entertaining for the mainstream crowd. Sometimes I would go offline for a day or two, and when I came back, the reposts were the ones who brought me up to speed on what’s trending.