No problem with arguments as long as they are respectful. That's how we learn.
There was a thread on this last December.
viewtopic.php?f=6&t=33826I pretty much felt how Mr.Shenanigans did, but I went out and did a lot of research. In the process, I decided to stop using Prime.
I'm not as convinced as some are that it's necessarily harmful, but I was convinced that carbon could deal with my chloramines without the need for Prime. If I didn't need to add a sulphur based compound, I saw no reason to do so.
However, I don't depend on the carbon just in the filter. Based on VeipaCrayy's design, I put a whole house water filter inline on an Aqueon water changer. That should take care of the chloramine before it gets to the tank, and the carbon in the filter takes care of anything else.
In the reaction to neutralize chlorine and chloramine, carbon is a catalyst, so that doesn't exhaust it, but other things it's removing will.