Well since you want to hear the fans opinion I will give you mine:
I think that she have a great personality. She is really loyal to her friends, she is determinated, ambicious, self-confident (I admit a bit too much sometimes), she is ready to help her friend no matter what, she is a prankster but wouldn't laugh if someone is hurt. She remind me a bit of myself. She also have a insecure side which remind me of myself. And the fact that she is loyal does remind me of myself too. But then again, this is my opinion and you have your own.
1.) She is waaay too overrated and only liked because she is the colour of sugar and rainbows. I bet if her design was like Firefly's then she would probably get no fans at all!
2.) She makes rude remarks and comments about others at random times for NO absolute reason whatsoever.
3.) She is SO fucking lazy.
4.) She doesn't give others a chance when they have been past bullies, villains, etc...
5.) She is a fucking ASSHOLE to poor Derpy, a disabled pony. It's not Derpy's fault that she's a little clumsy and has eye problems. Rainbow Dash just doesn't accept the poor soul just because they have some problems. THAT IS MESSED UP!
6.) She is a lying, cheater!
7.) She thinks she's all it and deserves more attention than others.
8.) She doesn't accept others for who they are. Namely, Fluttershy because she's shy, Twilight because she's smart and others...
9.) She whines and complains when things don't go her way.
10.) She doesn't want others to get some credit and fame. It always has to be HER that gets all the attention.
I could write a MILLION more reasons why I hate her and want her to be kicked out of the show. But I don't want to write any longer, my hand is aching xD
So...yeah. FUCK YOU, RAINBOW CRAP! GO JUMP IN A GARBAGE TRUCK, SEE IF I GIVE A FLYING FEATHER ABOUT YOU!
2. I have one thing to say about that. it is rude how would you like it if i went up to you and said your shirt is ugly so how was your day? see that is basically what dash does that isnt sugarcoating anything thats being rude.
7. again Dash is an asshole who hurts people and doesnt care learn to accept that.
3. still no excuse. you can explain her behavior but you cant excuse it! period!