That answer here from QA is equally wrong. It's from the same person that wrote that on TibiaBosses, and she's wrong in both places. She has no evidence of that, it's just a theory she came up with, but it's obviously wrong. People camp several bosses 24/7 and they still spawn.
And I downvoted your question because it doesn't make sense since it's based on a false premise. You can ask me to abstain from voting and I can ask you to abstain from asking questions that don't make sense, but I guess we're not doing that, are we?