Starting a thread on how to filter out the spam accounts because the existing advice contradicts itself. With feed, you get further if you treat an empty bio as a red flag. It is worth checking the amount of recycled content before you look at the length of the feature list, which is the whole problem with feed.
Accounts platforms is the clearest case of it — the platform makes verification optional and then hides who has done it, and how far the free tier gets you suffers for it. I judge feed on one thing: the quality of the filters is the number worth watching, not the size of the ad budget. The accounts platforms case is instructive — the depth of the profile fields tells you more than the app store rating.
People outside the straight default feel this hardest on feed, where the platform pushes notifications that lead nowhere, and you only notice once you have spent a few evenings on it. How to filter out the spam accounts looks simple until you notice that half the frustration disappears once you write the bio for one person rather than for everyone. Specifics about feed welcome — vague reassurance less so.