In a way the suggestion is valid.
We know that there are several games out there that do come with a monthly fee, subscription, and we do know that quite a few of them works and attracts a lot for players. But it's hardly the monthly fee that makes these games successful, it's something else. May it be the plot, may it be the game play itself, it's graphics, it's whatever.
You can argue that a monthly fee would guarantee Mindark a steady income and that would help in developing the game. You can also argue that if having a monthly fee then people would expect to be able to play it in the same way they play WoW, EVE or whatever. That the monthly fee combined with a lot of hours spent at game play would be all that is needed to prosper towards uberhood.
I don't believe that the game would attract more players if they first have to pay a monthly fee just to be able to log in and then to find that the fee isn't enough, they still can't really play since that would require yet another deposit. I can also see a problem with the 30 day deletion of the character if payment are not made. What if I go for a vacation, moves to another city etc and don't have time to play at all. Should I be required to pay the fee or having my avatar deleted. The same avatar that I've spent time creating, put some cash into to develop it etc. Even if you say it's just for a few months that the fee would be required I still say it would put more people off than it would attract.
What the game need is a slightly altered loot distribution, something more to do for the new players except wasting time, better advertising of the game itself and its features but most of all it needs less whining about everything being bad may it be loot, exploiters etc.
I believe that this community is somewhat responsible for the lack of new players coming in. We have a tendency to sabre everything, to pick apart every new thing that comes along to find that tiny little detail that isn't up to standard and then putting this detail forward with such verbal powers that the good things disappear in the smoke of that debate. Because no matter what they tell you when asked, the first thing most people do when stumble over something new is looking for more information about it, to read up on things. And what do they find? An ongoing flame fest, constant whining over details.
just my