https://blog.tildes.net/announcing-tildes
Only thing is that it's invite only at the moment... And I seem to have too hastily deleted my reddit account to ask for an invite on their subreddit.
EDIT: Got one, thanks!
Note that I can't email back to Microsoft domains because they block the IP range I'm part of because of previous ownership and they don't give a fuck. Google should work, but treats/misclassifies most low-volume senders as spam by default so be aware to check that. (Haven't had problems with other email hosters.)
My thinking is that someone with online creations is more likely to have something to post, to be a contributor, compared to when I post the invite here for any lurker/voter to grab. Voting is good, but so far I'm kinda missing the broad offering of content on tildes that you'd see on reddit, things like amateur astrophotography in r/space or the OC in r/dataisbeautiful.
Edit: the invite is used, so I removed the email address. One person with a gmail address emailed me, let me know if you didn't receive the invite within a few minutes!