Economics effects still apply to spam. Low useful signal still is an economic factor on if it is worth to do follow request spam "at scale" or not. Also, feder

Economics effects still apply to spam. Low useful signal still is an economic factor on if it is worth to do follow request spam "at scale" or not. Also, federation itself may be allowlist-based. Some instances already run that way. Likely many more would if inter-instance spam follow requests rose above a certain threshold.