I Say yes.
My Reasons:
1. For Fun, People love to make Species and Just Show around. What about Rules also, on the Species (ex. Have to have one picture, needs to be 2 Paragraph long)
2. The Imaginary Rises, When People look at other species, they Will get Ideas.
3. People Get to know How you think and See Things better. Getting to know ya.
Yet, as some reasons Said, It not much of a worry, More Reason I think?
1. Arguments, Like Red said (Ex. YOU STOLE MY BLOOD LINE ADEA! /Rage&Stupidstuff)
2. Spam, Such as, People hardly Telling you How they Look, act Etc etc.
3. ..I forget LMAO