How long does a shadowban on Reddit last?

I think it started last week when my posts were not getting any upvotes at all. Then I posted a reddit link into incognito window and yep, my post appears as deleted. Probably because I was promoting kbin.social in some of the subreddits. F**kers. I accumulated 150K comment karma over the last 15 years.

Edit: looks like my account was deleted too. I can still log on with the same name but in an incognito mode, I don't exist on reddit.