Highlighting, bolding, underlining and typing in caps are ways to bring "special" attention to postings.
Indeed, typing in all caps is considered to be yelling and blocks of colored fonts can be hard on the eyes; so avoidance is a matter of courtesy too.
Generally people follow a forum standard as a matter of good principle, rather than going against the grain and thereby suggesting/implying that their posts are more worthy of consideration than those of others.
Bottom line - no don't think he was being too touchy - was giving good advice.
Thank you! I've been wanting to tell MilPro this for days and, as a relative newcomer to this forum, didn't really feel it my place to mention something like that.