I don't know much about how it will work, but maybe Bitshares ME can use BTSX instead of having its own cryptocurrency. And then it could cost a tiny amount of BTSX to create new customized shares, to prevent spam. And the ME shares themselves could be traded and given a value in BTSX.
The names of the ME shares could be squatted on or what it's called when people just hoard names. To prevent this one solution is that ME shares must have a corresponding domain name, such as OrganicShares.org and only .com domain names would be given an ME name without the extension, so that for example TechnoTokens.com would have the ME name TechnoTokens without any dot extension.
When registering an ME name, then the website owner must put a public key in a URL such as domain.com/bitshares-me-authentication.txt.
People without any domain name at all can be given an extension -me to the name, such as JoeSmith-me, or the extension -shares or something like that.