Celebrities and Twitter

I do not have a twitter but I do however give a glance when it makes headlines on forums and such. Twitter is a great tool to keep in touch and I guess tweet everything that you are doing...but many celebrities show just how stupid they truly are. I have seen music artist such as rihanna curse out fans..granted the so called fan started it but hey you are a celeb, have some class. yeah I know they are human too but acting in such ways is is not professional. Twitter has made me see hoe truly dumb..because many of them cannot spell, and classless they are.