For these type of games the F2P+"micro"transaction model works much better than making the game available only for money (probably not a 1-time payment but montly/yearly subscription). I'm not an expert, but when I look at other games, that's pretty much the standard. Companies go for $$$, if a subscription-type model would be better, they would do it in a blink of an eye.
if inno wants to know that about FoE, then they should do a mandatory poll that is displayed the next time you log in. with options "YES i support pay-to-play-only if it gets rid of multi accs and annoying spammers", "NO, keep it the way it currently is", and lastly "I DO NOT CARE". if more than half of the accs click the YES button, then so it will be, otherwise, stop whining about it
Edit: and if you feel that new players are hindered by this, let them start first on a "neutral" world and play there with only new players, and when they reach the end of the (limited) tutorial, let them join a world of choice with that starter account. this way, you will have no annoying spamming of troll accounts that were just created to unlock chat feature so that can insult/annoy people with it, or otherwise start over (again) from scratch, or delete those accs if they are not used anymore. Diamonds and premium features should be removed from these neutral "tutorial" worlds, obviously.