Back in my charcoal grilling days if I had known about starter chimneys and if bought a Weber kettle instead of the cheap charcoal grills I was going through every season I may have never switched to propane.
However once I moved to a propane grill (25 years ago) I have never seriously considered going back to charcoal and now that I have the Genesis (absolutely awesome grill BTW) it's like having an outdoor kitchen.
I love grilling on the Genesis and before I got the WSM I was using it to BBQ ribs, butts, and briskets too.
I have a BBQ brother at work who is a devout kettle cooker, he grills and BBQs everything in his performer.
We have never once argued/discussed charcoal/propane in the context of 'better' only in what we are cooking and the techniques we use to get to the end.
Since I have had the WSM my mind is more open towards (high quality only) charcoal grills than it has been for a very long time.
If I had bought the WSM first (instead of the Genesis) I think I would have opted for one of the Weber kettles for grilling.
That being said I used the Genesis as an extra oven at Thanksgiving and Christmas, not so sure a kettle could really pull off that trick.
People that feel the need to hate on charcoal, are just trying to justify their laziness. They always say it takes too long. That's only true if you're a newbie and don't know what you're doing. I say that from experience. I had both and would never hate on either gas nor charcoal. I prefer charcoal. To me it does taste better and is easier to set up different ways. I too can have my Jumbo Joy going and grill some flattened chicken breast in 30 mins. For those short quick cooks I use a small amount Kcomp, since they start faster.
It's the internet, anyone can say anything on the internet