taskmaster is a great way to put on levels, but i do believe the risks are understated. Assuming you actually dodge the ban stick, people will see you and remember you. You run a risk of public ridicule and defacing your friends and future guild ... just keep that in mind.
GMs have handed out a ton of bans on my server with this, and ban people daily because it's so easy to monitor seeing as people have to go afk for hours doing it. All a gm has to do is log in once ever 3-4 hours and sit in dreadlands for 10 minutes. He'll catch anyone using it in a heartbeat. Anyone in dreadlands, KC, or the other associated zones (KC being the worst) are also serious risk factors. All it takes is one petition stating they thought you were doing something illegal and you'll get busted. This is what happened to me. A questioning peition was sent in by a concerned player ... gm checks logs and bans.
I got one of my alt accounts banned with this, and the dozen or so I'd randomly see doing it as well are also no longer anywhere to be found. I got greedy and milked it for a little too long.
Anywho if you don't mind losing your account for good, than i'd say the risk/reward isn't too bad. If losing your account would hurt/bother you, then it really isn't worth it. I'd rate your chances of getting caught at greater than 80% if you plan on running very much ... and that's assuming you get lucky.