The way I see it everyone is entitled to their opinions about League. Why should you be any different?
So what if people get angry that you enjoy playing against Neeko & are having fun with the game? All that matters is that you're having fun & no one has the right to tell you otherwise.
Neeko IS fun to play as & against. Yes, even I think she needs some fine tuning (personally, I'd have her Ultimate CD increased & maybe reduce the slow. After that, I'd wait & see where she lands). However she's incredibly fun & she can make some big brain plays if you play her correctly.
Don't let these naysayers REEEEE you out the building for having an unpopular opinion.