Aside from some excellent barrel makers already mentioned, add Hart to the top of the pile as well. Brux barrels are becoming.g wildly popular as well.
I don't think Lou was "telling you what to do or when to do it". He was simply offering very sound advise. As you shoot long range more & more, you develop a certain taste for different things for different reasons. Even intended use has an effect on barrel contour choices. Some manufacturers won't flute a barrel with less than a #4 taper. Fancy fluting sometimes requires a #6 taper. Barrel length & taper have minimum lengths for fluting. If your into saving weight, fluting helps, plus it looks cool. However maybe you don't want fluting, & want a factory taper barrel or even a palma contour. For shooting past 1k a heavy rifle helps soak up some external factors, such as heartbeat wiggling crosshairs etc.
Lou, & myself for that matter are simply offering polite advise in reference to the question posed. No one is looking down thier nose or telling you what to do.
Advise is just that. Advise. Take it for what it is, & don't read into what it isn't.
You've been around here long enough to know that. Most long time members (not all) are polite. The newby's here lately are a bit more questionable tho.
Lou is a very respected member, & offers very good advise to just about anybody willing to soak it up. I'm sure he meant no insult whatsoever, but id caution you not to ruffle his feathers either. He's a very polite contributing member, with real world experience, & knows his stuff. In my years here, I've not read a single post of his that was insulting to anyone.
You've been around here a while, contributed a bit, & have earned some respect. Your not a newby. You know Lou is good company.