Individuals/companies with known Steem-Engine tokens, aka STEM, AFIT, LEO, PAL, etc should have first dibs at creating those SMTs in my opinion. Otherwise it will just be a huge clusterf%$k at the beginning with people staking claims to all the known coins just to hold the names hostage and cause massive confusion.
Along these lines, are certain coin names on a blacklist? Like Bitcoin, etc. I remember someone made a Steem-engine bitcoin and it caused some issues if I remember correctly. Avoiding these issues should be a huge discussion otherwise everyone is going to try to steal grandma’s savings. I am not sure what the fee to create an SMT will be but I vote that it should be relatively high to avoid just a boat load of Shitcoins and behavior that we really don’t want to see. For instance, COKE and PEPSI coin should not be one of the first two coins created if you get my drift.