I have handled this by only allowing more-than-one-word names to be use as subdomains, and made a slug out out of it, like so: My Name => my-name.site.com Is

I have handled this by only allowing more-than-one-word names to be use as subdomains, and made a slug out out of it, like so: My Name => my-name.site.com Is there any gotcha's here for me?