Basically, if you search for their username and it doesn’t turn up, but you can still see them in your bookmarks or in your chat history, that means they blocked you. If they disabled their account, it would say so in your chat history, also their profile would disappear from your bookmarks.
Moreover, does OkCupid deactivate your account?
OkCupid profiles are generally deleted after about six months of inactivity. However, you can choose to have your profile deleted at any time.
Regarding this, how do I know someone blocked me on match?
No, you cannot tell if you’ve been blocked on Match.com. What does it mean when someone blocks you on match? When someone blocks you on Match, it means that they have chosen not to see your profile. You will not be able to see their profile either.