Opinion on exploitation of bugs within public beta enviroment

So, I know everyone overwhelmingly disapproves of the use of bugs in the pbe, but like what is riot's opinion on it? Do they want us to? To find out more about the bug and its triggers, or the problem overall. Or do they not want us to go near them once the bug has been discovered? Or do they even care about bug exploitation in pbe, since the bugs rarely get champs disabled? I know those of you who use bugs, will say its fine to use; and those who dont will say you cant exploit them and report. Im wondering what Riot's opinion is on all of this, or if anyone knows it. This is in light of the Mundo bug, and i guess the lux and nami ults awhile ago.
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