RIP, he shall be missed. That site's been a good one throughout the years, I've made genuine friends over it even outside its' more famous uses.
This does raise some worries about the future of FurAffinity. That site runs at a deficit, so if a corporate investor gets their hands on it then it will be swiftly thrown into the Shit Pit in order to make a quick buck. Decades of art, literature and culture gone in a flash.
Thankfully, we are the furry fandom, so the chances of getting touched by corporations are a bit lower than other sites which are more marketable. But still, making sure that the site has sufficient funding for the future is going to be a real concern. I can't back this up, it's just a rumour I heard, but the most likely reason that Dragoneer died now is because he chose to use his money to keep the site running instead of buying medicines. While the shitty US healthcare system is absolutely to blame for this death, it also makes a pretty stark point about the cost of the site, if it's comparable to having to buy US Medicines.
One thing to remember is that FurAffinity was bought previously by IMVU for a while. Dragoneer bought it back from them after they were going to shut the site down. So it narrowly escaped that fate once… and the future is very uncertain from it as from what I’ve heard, rumors mind you, is that Dragoneer was the main source of funding for the site.