I'm a little thrown off by your statement... where did I say that somebody's self-worth was determined by their physical appearance? I made it clear in my post that I find that superficial.
Well, It's probably an interpretation error on my part, but you did say:
To undermine somebody's self-worth based on a skin condition is purely a superficial thing to do.
And I assumed that you were accusing the OP of doing the above, which meant, to me, that you were linking self-worth to one's physical appearance.
I'm perfectly content with acknowledging that acne is not flattering. However, isn't a tad unfair to deem a person unattractive because of one unpleasant feature?
As far as I'm concerned, there is a fairly direct connection to be made here: If an individual has an "unpleasant feature," their overall appearance is likely to be negatively impacted to some extent. However, in my opinion, this does not mean they are "ugly" or unattractive as a whole, and it's certainly not an indication of lesser intrinsic value as a person.
OP's method of "introspection" was harsh in a sense that some acne sufferers here are already vulnerable and being called ugly, indirectly or not, isn't the type of support they were looking for.
And I can't help but yearn for those who strive to meet "society's" definition of beautiful. Acne eats away at you slowly, so feeling even the smallest hint of confidence can help us cope. And that's hard to achieve when even your fellow acne-suffering brethren is reminding you that you are the definition of ugly in the eyes of many.
Honestly, I don't have much sympathy in this regard. In my opinion, if anyone is this "vulnerable" they should avoid community forums (especially those titled "Emotional and psychological effects of acne"). This, among other reasons, is because they're likely to present very diverse feelings and opinions, and no-one is obligated to make sure their thoughts align with anyone else's. In other words, I don't think it's reasonable to expect everyone to provide that exact kind of support you need.