I get you. When I first put the game out, I did get a number of bad reviews both from the in-game ads, and from the fact that webgl is kind of... inconstant.
But I do want to be able to promote any of my games from any of my games. I guess some people will freak out.
Anyway, I put an option in the menu that let's you turn off promotions(downloading them too), and I inform the user that that option exists when they hover-over the "boost" icon. And I still give them a set 10% boost if they opt-out, as opposed to 35% for looking at it.
The scary thing about Kongregate was that there were people down-voting any new game that looked decent with about 10 accounts. I think the prize money for their monthly contests was bringing out the worst in people.