So that dude that got good results is messing with everyone?
Not necessarily. If you are growing in conditions conducive to aerobic bacteria (cold water, lots of DO) and the plants are healthy, then the aerobic bacteria will build up and it will be very difficult for the anaerobic bacteria to get a foothold.
If you look at the patent, you can see that one of the ingredients is a form of pyrophosphate to help buffer pH as well as increase metabolic activity in the anaerobic environment. Pyrophosphates are generally hydrolyzed and broken down in aerobic environments to orthophosphates. I suspect that his "spurt" may have been due to blasting his system with phosphate. If he's not doing weekly res changes, he may be in for a surprise further down the line...
If you're growing in high water temp conditions (above 75* F; I would even say above 70* F) I would avoid anything to do with organics - nutes, molasses, beneficial bacteria boosters, etc. This stuff is supposed to attract beneficial bacteria; but if conditions are right for anaerobic bacteria it will attract them as well. The winner will be the one who has the best conditions to live in.
Besides - as Consumer Reports proved - this shit is a waste of money. If the conditions are right the bacteria will show up and proliferate all by themselves; you don't need to keep adding them to your system.
Look at the patent, look at th FAQ's on the web site; they say it is for anaerobic environments and specifically state it is not for aerobic environments. I'm guessing your water is probably at 75* or above, and when you added the Rid-X it foamed up, your pH rose, and the anaerobic bacteria went to town.