"I bought a good camera so I'll start a photography business"
This mentality annoys me so much. I have two "photographers" on my Facebook that fit in to this (plus a third who was but gave up). One of the two is at least taking courses and trying to learn the skills, however, she posts sneak peeks of her sessions on Facebook and often the images are OOF, badly composed, pinlights, weird colours, inappropriate selective colour edited, etc.
Even worse, another lady has started a photography business because she was in an accident and wants something "easy" to do. She has printed business cards, started a business page and is advertising herself as an affordable photographer. I saw her images and was gobsmacked that she is charging! I wish I could link to show her images but thought there might be a rule against it. A couple of her images are obviously blue, which gives you an idea of the quality. Photos of backs of heads, kids swallowed by props, etc. Ugh. It annoys me as I think you shouldn't be calling yourself a photographer until you earned that right and you certainly shouldn't be charging to 'point and shoot'.
I badly wanted to make a comment on the business page but I didn't. She has even made a second fb account (using her real name and DOB) and has used that to write "Great photos" on the business page as if she was a customer.
Vent over :)