You are probably right.

 Ok Traders, what do you like of this..

Since providers pay a fee, this will obviously act as a quality check. A provider that does not make money would not submit a system because they have a few dollars to lose.

Unlike Zipsignals, Zulu, and RAS, anyone can submit there system with nothing to lose and much to gain.

What is your opinion on a Fee for providers to join?

I have to correct myself, the reliability is zero.
I'm using C2 from MT4, with their payed EA to send trades automatically. C2 opening and close prices are much different from mines. Position size where incorrect on several trades, and some trades where left open after I closed them.
A complete mess.

Signal provider shall pay listing fee every 6 months. This means only serious providers will submit the signal. Loser one will be eliminated by itself and even afraid to register at the first time. Zipsignal, zulu or RAS signal anyone can submit signals without worry to lose money.

Hi everyone,
I tried to use Collective2's systems some time ago, but to be honest I was not able to do as I think it was possible. I started to receive several e-mails but I didn't find how to connect in order to trade automatically. On the other hand, I was specially disapointed because one company who seems to have some brigde for working with some brokers, I don't remember its name but should had a partnership with Collective2, starts to phone me, sends e-mails, etc.
It's true what you say, they are the one signal providers marketplace where signal providers must to pay, but it is not a guarantee for having serious traders as signal providers, because they can pay for positioning their systems better, so if you pay, your system is better ranked and promoted in Collective2....