Gotta hate when people are like that. It just means they are feeling a little weak on their knowledge and don't want to be exposed. It's like the old joke 'How many guitar players does it take to screw in a light bulb?' answer "10. 1 to screw it in and 9 to say they could do it better and faster'. Guitarists are a prideful bunch that seem to hate not looking like and expert. They're just worried that they will look like fools/ Suck up the pride. I've played for a few decades but never much bothered with theory. I asked in a thread here and Chris was kind enough to give me a nice pathway. Asking never hurts and those that don't answer probably just don't know.

Anyway, here's a few nuggets Chris gave me that might help:

Chord and Scale Relationships
http://guitartricks.com/tutorial.php?input=426

Major Scale Patterns and Positions
http://guitartricks.com/tutorial.php?input=453

C Major Scale For Beginners
http://guitartricks.com/tutorial.php?input=473

C Major Scale Exercises For Beginners
http://guitartricks.com/tutorial.php?input=463

A Minor Scale for Beginners
http://guitartricks.com/tutorial.php?input=453

A Minor Scale Exercises For Beginners
http://www.guitartricks.com/tutorial.php?input=466

Pentatonic Scales & Frameworks
http://www.guitartricks.com/tutorial.php?input=296

It can be a bit of work but terribly rewarding when you 'get it'. Have fun!