How can I find out if I am blacklisted from entering Thailand and what should I do about it?

A user is concerned about potentially being blacklisted from entering Thailand and seeks advice on how to handle this situation. Responses suggest waiting until a blacklist period ends, applying for a visa before traveling, and checking with local Thai embassies. It is noted that one typically knows if they've been blacklisted due to prior overstays or legal issues, which would have been communicated at their last departure.