Enter publishers, writer's agents, and all their restrictive rules. You approach a potential publisher and it seems like they roll UP the red carpet and start pushing the button to call for security. The ball is totally in their court, after all, and they have hundreds of writers who are clearly better than me just waiting in line to fall at their feet. Or, so you would think by going over their submission guidelines.
Anyhoo. It's annoying. That is all.