[quote=@Ellri]
the pessimist in us says this:
Even if 99.9% of players don't break with what is appropriate, that last 0.1% can still be more than enough to make a mess, say for example if that adSense thing reacts to images too.
[/quote]

As a speaker always in favor of the user, I don't believe there are sufficient methods to abuse the system to warrant cutting it altogether.