Sometimes I feel a bit frustrated about the fee-system of Nxt, when I see these kind of blocks passing by:

Fee = 0,0016%

Fee = 33,33%
It's not really fair and the rich are getting even richer this way. I love Nxt, but there are small flaws which needs to be addressed. The critics will talk negative about Nxt because of these kind of issues.
Maybe a percentage instead of a fixed fee? Curious to hear about the options.
I dont think approaching anything from the "rich getting richer" is a good idea in a 100% POS system. IMO though fee should be based on transaction byte size. And even if it were based on scale of larger transactions = larger fee, the 'rich' are more apt to mine those higher fee blocks anyways. There just doesnt seem to be a way to prevent the 'problem', as it were. Regardless, 'the critics' wont matter the more and more NXT features are released.
The real concern here is people just giving up forging, or centralizing their forging power into central pools.
I understand that in a POS system the people with the most stake are getting more rewarded. But how about people with less money/BTC and also want to join Nxt?
I have over 100k, but in 24/7 I forge 9 NXT in a month... So from today I quited forging, to much risk for the reward. I am sorry.
I am just thinking out loud about how we can get Nxt more fair and better.