[jacquesm]

If you advertise free storage you can't really complain when people wonder what else you can store there.

If you advertise a forum then people will do what they can with that forum, some will troll, some will try to advertise (even if they have to spend a lot of time to groom their audience) and some will do that much more outright (spam).

If you launch any service on the internet these days you have to start by analyzing it from the angles of possible abuse first. This is frustrating in a way but it is also inevitable, just like in life there are no niches that contain harvest-able energy without some life-form that takes advantage of that by adapting to it.

Storage, CPU, bandwidth are the currencies of the modern age, giving out any one of those currencies is asking for it, especially when it's done in large denominations.