Utilitarian code of ethics, yeah I get that. I feel similarly, but I would sooner refer to it as Machiavellianism (it has a better ring to it). I feel emotions and empathy, but I practice a code of practical callousness.
Anyway... If you aren't honest people here will very easily see through you and all posts you make about yourself will be shat on. You will be shunned and it won't be fun for you. People won't talk to you - they will just insult you ENDLESSLY! Then you will leave.
It's better to armour yourself in honesty. This forum is as anonymous as it gets on this part of the net and you can get some actual use out of it. You'll get no sympathy though.
If you're great at lying then you will entertain. You might not convince but you will stir up drama and that's always fun.
If you start a post that can be summarized as "I'm great" people will jump on you. Try to engage with users rather than just stating things.
I gotta say though, I smell a narcissist!