I kinda like "steemit"... plus, if you change the name, it has to change to a name where you can buy the domain name, because you can't have people going to a different domain than the name of the site...
That complicates life, because short domain names are very hard to get. "steemit" is only seven letters... very very hard to find a seven-letter domain that is also catchy.
My suggestion: let's live with "steemit" Don't worry about Reddit, or steam.
Those of us who are subscribed to steemit, we are already accustomed to it the way it is and not many are complaining.
"Steem Dollar" is as good a name as any, and actually better than many real world currencies (eg, "dinar" "shekel" "real" "ruan" "kroner" etc.) .