i guess also some peoples get ashamed of who they were and of that name, and also here it is announced i have seen a few forums where it is not so you do not see it.
although, for example, now i know that yui is a female Japanese name, and i am neither, when i started using that name online i did not but i keep on using the name for continuity sake so that peoples do not get lost but i am pretty sure that upon learning that some would change it.