Tbf, these days you don’t even need to do the entire weight lifting of maintain your own website for the most part. I mean, we do are users at SDF, right?
POSSE’s problems start at the very beginning: it requires owning your own website, which means buying a domain and worrying about DNS records and figuring out web hosts, and by now
You don’t need your own domain to have your own site. Sure, it’s ideal to have, but not necessary; all you need is a “community name provider” that you trust to remain trustable for as long as you care to maintain your webpage. For me, that could have been Geocities back in its time; now, well, it’s SDF. Neocities is tempting me tho
Buying your own domain I feel like it’s oversold and overblown. Domains these days barely mean shit when it comes to security, authenticity or longevity (as we’ve seen with eg.: the entire .ml fiasco, or the fact that you can very perfectly get malware from domains like Steam’s or Microsoft’s).