Yes.




Betcoin.tm doesn't pay big winners and should certainly be classified as a scam.

Betcoin.ag has no relation to Betcoin.tm 

Betcoin.ag doesn't have issues with paying winners and saying they are not a scam is a valid argument.
However, an online casinos ethical responsibilities do not start and end with "processing cashouts and compensating those who complain"

Rather than fix their mistakes (which happen regularly and have resulted in huge sums of money not being paid to entitled players ) they do whatever they can to cover them up. 
They put a ridiculous amount of effort and money into convincing the public they are honest and transparent while blatantly lying and paying people (coughcough...peeps...coughcough) to kiss their ass and attack anyone who criticizes them.