Everyone has things that are difficult for them when they are first starting out, whether its learning the magic of friendship or how to dance. There are many mistakes along the way, and when you start young the mistakes are so cute that no one can bear to correct you, like when Luna was mispronounced "Woona." Correcting these mistakes is a part of growing up, and some ponies can't bear to see their children grow so soon.
Your little dance always cheered me up, and I loved seeing how freely you danced without worrying what anyone thought. I thought it was very good and said so, so please believe me when I say I'm not trolling you.
P. S. The next person down, now that's a troll, so please just ignore them.
Where were your doubts about the friendship thing when you found the body in Pinkie Pie's basement? Oh, her showing multiple signs of being a sociopath don't matter, but making fun of your DANCING?! HOW DARE SHE?!