There is definitely a stigma associated with seduction. Personally I would not want any girl I care about to know that I am familiar with it...
We are humans, we have natural feelings towards other people. We like some people and dislike others. We fall in love with some even though there is no reason, and don't really care much about another ones no matter what...
When you meet somebody and you like that person, it is usually because you like some personal characteristics and behavior of that person, and you naturally develop connection with her (or him)...
Imagine you meet a girl that you like, vibes are great, she appears to really like you, she is looking deeply in your eyes and is really interested in you, she makes you feel really good, she appears to have exciting life... you realize that you are falling in love with her because she is just a great person and the vibes are amazing...
And then you discover that she behaves in the same way with every guy she chooses to... That she doesn't really give a damn about you, that she is just moving from one guy to another, that she doesn't really like you that much and you are just one of her weekly "numbers" on her list, that you are rated 5/10 on some scale of attractiveness, that she only faked the vibes, that she just practiced hot and cold (or other 'techniques') on you, that she is perhaps only practicing on you her seduction skills so she can eventually get that 9/10 guy that she really likes, that she doesn't really have any other life except practicing her skills on different guys...
You would feel used, tricked, worthless, perhaps even sick... You would know that there is just something weird with her... Imagine a girl that truly falls in love with guy like that, and then realizes that she was just tricked into sex, that he is only practicing his skills on her, that he is actually quite different than his appearance and what he pretends to be, that all he wants was only quick sex from her while he was just pretending that he is really connected with her on deep level, yet doesn't really consider her that attractive at all...
There is lots of insincerity associated with seduction, it always comes down to what kind of person you really are... People are not stupid, they will eventually see through you...
That's why it is so important to work on your life vs spending all the time on seduction... Go after what you like and become good at it - whether it is academics, business, fitness, art collection or whatever... That's who you are, that's what you like, that's what you do, that's your TRUE personality that you are not faking, that's your LIFE... Don't do it so you can get laid, do it because you have a passion for your life...
There are guys here who spent 90+ percent on seduction and 10 percent on their life... You are not fooling anyone, you are only fooling yourself, the girls will find out and they won't stick around, not the good ones that you care about... The reason is simple, they know you have no life, they smell the insincerity... Get a life, develop some passion for what you like, and any quality girl will love you for that because she can join your life...
So is seduction wrong? Definitely not. There are many great things every guy can and should learn, and there is nothing wrong to learn the dynamic of interaction between makes and females. It's all good, beneficial. Just don't spent your entire time on it, get a real life, develop real personality, learn to be truly sincere and genuine with people and especially girls you really care about... If you can do that, you will find out that you actually don't really need much of seduction skills, you will find out that girls trully like you for just being who you are, for living your life...