don'tcha love the picture of the top of a rusty aluminum tank? Wait a minute aluminum doesn't rust...eeewww! PSI puts out a good class.
If a recreational diver is the diver that rents all gear, goes diving once every other year on vacation, silts up the bottom by sitting on their knees but doesn't know that it is a bad thing, has a huge brick dragging on the rocks, has their tank so far down on their back as it bangs the back of their knees, and is happy swimming through the water at a 45 degree angle... then DIR-F will do nothing for them. They are content just getting in the water and blowing bubbles. By the numbers, there are a LOT of divers that are not active, once every couple of years; wich makes these divers the "average" diver.
If the diver is already tech and doing hours of deco with numerous tanks, then again no DIR-f will do no nothing for them as they already have the training. Sure they might gain some knowledge from the TECH level GUE classes, but more likely they are happy with the training they already paid for.
I feel DIR/GUE fundies or above are classes best aimed at the diving enthusiast who is looking to better their diving abilities or maybe looking into tech diving.
I have always dove with a BP/W, the first time I got on a boat for my check out dives the skipper said "oh oh, your one of those DIR guys?" I didn't even know what the hell he was talking about and said so... Today I help out at the LDS and didn't even tell the boss/coworkers for a while that I took the class because they like to bad mouth it so much. "ooh your a dur diver now, do you have your long hose wrapped around your neck ?"(wich I hind funny because he actually its wrapped around your throat!) I hear so much anti-DIR, and GUE training is presumed to be DIR I generally do not say that I took this class unless I know someone is honestly intersted or has taken the class themselves. When I took the class I was a curious how egotistical the class was going to be (ala GI3) but to pleasure, the class was real down to earth and I have since met many GUE certified divers all of whom are nice quiet people. Now I wonder where the attitude originally came from (just a couple bad apples I guess). It seems to me their is more DIR bashing today than DIR Chest thumping....