I know a lot of you and have met many of you personally, and of course, I love almost every homebrewer I have ever met. But don't be "That guy".
"That guy" is the guy who showed up at our "Randall" event at a draft to go store yesterday. I wasn't there, I was at the brewery, brewing. But "That Guy" walks up to one of my partners and starts flexing his brewing muscles, asking questions about the beer, and then telling my partner why it wasn't the way he would do it. eg: I don't think an IIPA should ever be over 8% abv., and other assorted, sundry, observations and points.
Not in any way saying you have to bow down in front of your commercial brewing brethren, but for heaven's sake, if you think you can do it better yourself open your own damn brewery. And, please, at least try the beer before casting your aspersions.
(Yes, I'm hoping "that guy", by chance, reads the forum.)