Your character, and possibly you, is new to EVE. Really, I'm in the same boat. Though my character looks 9 months old, I only have about three months of interacting with others as I took a large break.
I think it's important to remember that other people are not *obliged* to like us or accept us. We're coming into an already established community and asking to be let in. The onus is on us to fit in.
Can you please everyone? Not at all. You'll drive yourself insane trying.
At the same time, if someone in PIE is uncomfortable with your handle or how you've handled criticism of it, simply labeling them idiots and suggesting that you're 'wasting your time' with them probably isn't the best way to tackle this. It's not a purely IC game.
Last night, I got sloppy and lost a ship while mining. My fault; I was in null and wandered off to the bathroom and got a drink while in the belt. When I got up, a hurricane had warp scrambled me and had already chewed through part of my shield.
This wasn't Makkal's doing, it was mine. Afterwards a number of corp mates explained what I did wrong. My first reaction was defensive, but they were totally right. I was acting like I was still in high-sec where stepping away from the computer for 5-7 minutes is safe 95% of the time.
The character Makkal had nothing to do with it.
Knowing I made a stupid rookie mistake sucks, but it's expected. What's also expected is that I take criticism with a thick dose of humility.
That person you blow off in an OOC conversation might also be the one who trains and takes care of you IC when you join their corp. How are they to know you won't carry that same attitude when they tell you that you're doing something wrong? Not your character, you.