1) It's a scam
Prove it? Every single currency on the site has been called a scam at one point. Unless the software is distributing viruses, this is not enough to de-list.
2) Only traded on special exchanges that trade one coin
As long as the exchange is open and anyone can buy and sell freely, not sure why this is relevant. If anything, there should be a volume requirement, but the three in question already have way more volume than most of the other currencies. If you have evidence that exchange is falsifying data, then please let us know. I've already tweaked the calculation to avoid price manipulation spikes on tiny volume.
3) The marketcap is misleading for 100% pre-mined coins vs non pre-mined coins
This is really the only argument I have sympathy for. But that's what marketcap is: Price x Total Supply. We can solve this problem by providing filter for 100% mined coins. What do you think of that solution?
Oh yes really? When someone has proved that NXT IS a scam, you ignore um and call him a troll instead of responding. That's your way to feed the scam.
1+2 --
https://bitcointalk.org/index.php?topic=189919.new#new
3 --
If all coins are premined (in the positive sense like in a 100% PoS coin like NXT), the developer distributes the coins for BTCs, or give aways etc...
In this case 'total no. of coins' are the coins that the developer has distributed till date; this's similar to the 'total mined coins till date' which this website considers.
NXT has no roadmap or whatever of how the coins will be distributed, it's now know how many coins the developer holds or how many coins are in circulation; thus 'total no. of coins' or 'total mined coins till date' are not know to correctly predict the total market cap.
The way you want it, makes things like this --
Declare there're 100 billions coins. Distribute 1%, prices go up cause the coin is scarce; multiply the price * 100 billion = Total market cap where 99% is owned by the developer and he's the god.