So just another rule set up by Blizzard itself. No effective difference here.
It doesn’t matter which self-made rule they would use to shut it down…it stays the fact that they are entitled to make exceptions of those rules or to enforce their self-made rules.
Also:
Frowned upon =|= forbidden / not allowed
While the one thing might get subject to deletion (which is again up to Blizzard to actively decide) the other is pre-stated to face consequences.
Everywhere…just not where the affected players actually are. I see. 
Nah i meant an official executive of a company (and as stated on the EU site 6 other people of different nationalities of the EU) would start a petition on the official way described on the EU website and this petition would be advertised by the companies on the company websites to reach the people for which this petition is to be done in the first place.
Nothing in backrooms.