FAQs clearly discourage (or actually disallow) using signatures. Meta discussions seem to encourage removing greetings ("Hi", "I am new here" and so on), as well as end notes like "Cheers", "Best regards" an so on.
Why there is no automatic message saying "You should not sign your messages" and probably something to discourage unnecessary greetings in the beginning?
Similarly, subjective titles produce
The question you're asking appears subjective and is likely to be closed.