They are probably talking about people who believe lolita is a costume and not a fashion. These people often wear Milanoo stuff made from cheap, shiny costume satin and it just looks terrible. Personally, I wouldn't insult these people but if they really want to wear lolita, they sure need some guidance.
But yes, anyone can be a lolita. They just need to learn what does and doesn't qualify.
Cosplacon: Finland (Hetalia) - Sakura (CardCaptor Sakura) - Royal Suit Alice (Alice: Madness Returns) - Shion (Higurashi: When They Cry) 10%