very true, though i suppose there needs to be some distinction or definition to what constitutes a guilty pleasure. as you've pointed out there are personal ones, (self-imposed) and societal ones (external pressure) both of which can be healthy or dangerous.
its all about degrees isnt it?
the degree to which we hold them. the degree in which we allow them power. as in all, moderation is key as its all balanced on a razor's edge.
societally, guilty pleasures are close kin to peer pressure i think. in fact it may well just be peer pressure in disguise. inter-changeable. as you've said it gives too much power to those imposing the idea of it being guilty.
i suppose there's a couple side tangents we can explore here;
1. why do we feel the need to associate guilt with pleasure. they should be opposites, yet we make enjoying ourselves feel guilty. is it solely societal? or is there some innate part of us that feels guilty/selfish when we focus solely on ourselves?
2. how much do you find yourself a victim of societies whims and thoughts? why does it matter to you what society says about say, enjoying taylor swift, or indulging in cartoons as an adult, or secretly liking Twilight etc.
3. in what cases is the surrendering of control of our pleasures healthy?