The first point is CRUCIAL for setting up your own “scrolling page/account” for, since the instances are only very vague directions, at least while the site is still growing. And in a similiar vein, the second point with B) would be better than manually blocking communities I genuinely have no interest whatsoever in, like fountain pens (unless I don’t know how to operate this site yet).
In fact, C) feels unnecessary because of that right now, since I already see many new communities just in my instance alone. Though it WOULD add things to browse since there isn’t as much happening here, yet…