The pixiv handle shown is "torazo". Which means people who look at it will type it as torazo, as has already happened, hence the split tag. So yes, an alias is needed, unless we decide "torazo" is too short and common to tie it up in an alias.
Since the URLs should direct people to torazou with the find artist function, I think I'll skip the alias for now. If it had a lot of posts I'd do it, but yeah for only a few "torazo" might be too short to alias right now.
