Will a validation once in three months be too much?
I think that validation every 7days is perfectly fine. Firs of all, it is meant for those who want to mine the coin, right?
To be able to simply use it, send it and trade it, one does not have to be validated. So there is no absolute need for people to take part in one, weekly event, that only lasts an hour, to accept DNA as payments etc. Those who complain about validation are either lazy and want to take profit, for doing absolutely nothing or where rejected during the validation (mindless zombies?)
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It's like running a mining rig, you just don't turn it on and count free money, it requires at lest some dedication and supervision over the process. OP don't bother with non constructive critiques, this is cool project, with loads of potential.
Now, could you make the node window to hide itself in to tray, like the client app does? More of an aesthetic issue but seem important, no body will like to stare at this nameless icon all day.