Is the signal system unable to cope with a large number of subscribers?

 

I put this question, as the leading free signal provider for MT4 has changed his signal from free to a subscription charge, in the belief that less people will subscribe. Consequently those that continue will sustain less slippage when trades are copied. Or is it that brokers have the foresight that envisages the signal provider making several thousand subscribers very rich? Is there a stench in the air? I'll leave it with you to decide.