We've unfortunately just had to permanently ban 80 players for bug abuse. In this case for taking advantage of a bug which made it possible to get a certain quest reward repeatedly rather than just once.
We would like to remind everyone that we will not tolerate players who abuse bugs in RuneScape, and serious abusers will always be banned. If you are in any doubt on our rules, please take the time to review them again.
These days we produce detailed logs of all activity on RuneScape, so even if someone abuses a bug we don't yet know about, when we DO find out about (and we will), then we'll check back through our historical logs and ban them anyway. It's just not possible to get away with this abuse anymore.
It pains us greatly to lose 80 members in this way, and we just can't believe that 80 players have just chosen to throw away hours of work, by deliberately abusing a bug! There was no chance of getting away with it. Why did you do it?
So please do not risk your account in this way. If you do find a bug in RuneScape, the right action is to immediately report it through our bug report form in the customer support section of the website, and then to avoid doing it again.
Finally we would like to reassure our users that we are very, very careful not to ban people who have only gained from a bug accidentally. The players we just banned were all players who abused the bug repeatedly, many over 100 times in order to try and gain an unfair advantage. Players who reported the bug to us were given more leeway, although even if you report it that doesn't give you excuse to then go and use it repeatedly until it's fixed.
Be safe, and dont abuse bugs you find. Report them immediately!