are these periodic infuxes of bots (first porn, and now pharmaceuticals) a kbin-specific problem, or a wider fediverse issue?

and is there anything we, kbin, or the wider fediverse can do to combat them?

I realise they're probably solely an issue to users like me, who frequently browse all and by newest, because of the relative dearth of content here compared to reddit, so the verdict might so not be no further action is needed. and admittedly, it's not hard to just scroll past their posts.