I did delete all my accounts when this first came out. Fortunately I've been around long enough that I don't find stackoverlow that useful for myself, but it does mean I won't be providing help to other people anymore. Hopefully a new stackoverflow will arise soon.
I would do this, but I wonder what damage it would do to people like me several years ago. It was a fantastic resource for me when I was a junior, and I see juniors today relying on it too. I don’t care about SE the company — in fact, I’d love to see anything with a hint of SJW meddling implode — but I don’t want to hurt the resources and opportunities of the people coming into the industry.
I'm sympathetic to that line of thought. On the other hand, if you support SO.corp, nothing will change. If everybody kept supporting experts-exchange.com and not migrated to SO, we'd still deal with hidden text. My guess is that we will do that again, as SO is aggressively pushing for more monetization, and that might be the point for people to switch again - or they may not, because of the time and effort they've put into SO and not wanting to give that up.