I don't know. It'll be weird without one of the biggest cultural touchstones on the internet gone, but they haven't made actual OC in eons, and the website itself was on life support even before 2016, as everyone had shifted to common social media and out of chatrooms, imageboards, and forums.
I'm just wondering where these people will go if not the Sharty or other altchans. It would be funny if some of them actually went to Tumblr or Bluesky, but it's more likely they'll just head to Xitter instead, o algo.