Why do you want help from do-it-yourselfers?
Are you seeking help for any particular reason?
Yes, I need to find new customers for my painting business
I understand that you want help to find customers for your painting business. So it is good to reach out to others when you need help.
I don't want to ask for help so they can steal my business.
I can understand, but these people can help you reach a new customer base. It's good to want others to be able to have help if they need it. You should be thankful for anything you can get.