Mercenary runs on Hyperion or other servers.
I don't understand why people dislike it so much? Don't want to pay? Then don't pay. Enjoy wiping on titan 100+ times. Valuable lesson in life and business; if you're good at something, don't do it for free. When you start helping for free, you start having moochers who start to leech off of you and your generosity and then a cycle begins where they bring in a friend; then a friend of a friend; and then a friend of a friend of a friend, and so on.
Before you know it, you have 30+ people asking you to help them with Titan, not just any type of help. 100% 7 man help while that person dies in the first 2 minutes of the fight. If I'm supporting someone that hard, I'm going to charge them and eliminate the moochers who want everything done for free. You give a stray cat food and it will return to your doorstep expecting more free food; after a while, that cat will wander around and the scent of food on the cat will attract many more around him/her.
For those thinking it's a banable offense, I want to direct you to the ToS. Also, to prove a point. Why is there an option to pay people to meld your materia? You're paying for a service that you can't do yourself. If you could, you wouldn't pay at all. I've had 6-7 people send me private tells saying "I reported you" and "You're going to be banned". I laughed, but the fact is these people think that paying for a service is illegal. Gil buying/selling is illegal and always will be.
I hope mercenary runs become more tolerated as they have been going on since the beginning of MMO's.