I was just answering the question as I saw it as posted. I would say alot of men do see this as a good thing, but more mature men may not. It depends on the person. personally....I would prefer someone close to my own age. More in common that way.
To be more serious...I think of a woman who is much older than the male companion. There are men and women who prefer companionship that is either a lot older or younger than themselves for their own reasons.
Perhaps it was originally derogatory remark, but I think it's now far more acceptable on the whole. It's a kind of red flag filled with seduction and suspense. Therefore, pretty alluring, don't you think?
I think cougars are the new "sirens" of classical literature.
I'm in a relationship with an older man and I am nearing 40. He calls me a cougar, and even though I am no longer dating younger men, I find it amusing! Cougars should be recognized for what they are: "older" women knowing what they want and going for it; especially younger men.