Pathfinder explosive runes abuse describes a scenario and the asker (presumably the GM) is unhappy with it, and says:
I don't like this in the least bit but I am not sure how can I argue that it won't work.
Well... it will work if things go as described, and they're well aware of it, so I'm not sure how we can help. And, well, if they have problems with someone wanting to "use pathfinder's explosive runes as an offensive spell" (considering it is one) I'm not sure what we can really do for them.
... what do we do with this question? I'm at a loss here.