I've been reading a set of bloggers for 20 years and all but one are all still at it, though one moved a few years ago onto Substack, which ended his RSS feed.

They don't seem to receive high traffic, but they're damn good blogs - which seems to me like a better form of 'success' than any amount of popularity. After all you can find the herd's footprints around all kinds of pointless shit.

Substack does support rss, though they don't link it anywhere. Just add /feed on the end of the url.