Same. Redditor for 15 years and the API thing was the last straw.
I didn’t post about not engaging with or using the platform anymore. Nor did I delete my account, since it still holds some value to me. But I slinked away into the darkness and now HN is my social media tool.
I didn’t have a schedule, but probably had 5 or 6 accounts over the years… purging, deleting, and a few weeks later rejoining. The last time I deleted everything was before the API changes, and it was the last straw. I haven’t attempted to create a new account and don’t browse at all. I used to spend hours per day there. Now the only time I end up there is if a search engine directs me there for an answer to a specific question I have.
For me it's been every six months. I've even given some creds for burned accounts to the void for the heck of it.
That said, I think you could easily correlate my hn activity with my reddit usage (inverse proportionality). Loving it tbh, higher quality content overall and better than slashdot ever was