Frequently there will be "hire a professional" answers which are not really answers; it's just punting because you could give that answer to EVERY single question on the site. This site is about doing it yourself, so when somebody answers "hire a tradesman", that seems non-responsive to me. I think there should be guidance in the help to the effect that making answers that say "xyz is dangerous, hire a professional" with no self-help option described be considered "not an answer" and flagged/deleted as such.
Just to clear: I propose that the help state a policy that all answers must have at least one self-help suggestion and that answers that consist only of warnings and the advice to hire a professional are not constructive per the purpose of the site which is do-it-yourself.
I think it is ok to add a professional help option to an answer IF IT INCLUDES A SELF-HELP OPTION TOO, but just warnings and get-a-pro advice should be flaggable as not answers.
Once again the reason for this is that EVERY question on the site could be "answered" with the statement "What you are proposing is possibly difficult or dangerous so you should hire a professional."