Your guitarist sounds like an opinionated (rhymes with "click") after reading that rant of an ad.
There are ways to get your point across without all the hostility. Your ad needs to contain a certain amount of detail about what genre or styles you're looking for and what tones or guitar sounds your looking for (sounds like the band ______) with out insulting somebodies wife before you even meet your prospective new member.
The gear section is particularly amusing. "No modular amps!" Um ok. An all tube Mesa halfstack is a modular rig so is he planning on using nothing but 10 watt combo amps? I do understand his reservation about effects as a lot of people really don't know how to use them properly, however he may have just limited the potential of what your band can do sonically. A well placed special effect can be incredibly effective in the right context.
As for pointy guitars... did you ever stop to think that maybe that was the players first guitar and they simply can't afford to get another more traditional instrument at this point in time, even if they are employed? Besides an all white Randy Rhodes V with gold hardware is pretty classy looking. I have encountered some incredible musicians that will blow your mind but simply don't have the funds or too many family financial obligations to justify buying a new guitar at that time. Something to consider is all I'm saying.
It's obvious to me that your guitarist has a certain vision in mind but he has effectively eliminated a large number of potential auditions simply because of a negative attitude. I suggest you discuss it with your band, pull this ad, and rewrite it like a professional adult. I think you might even get your first phone call if do. I for one wouldn't call you guys ever, even if I knew you had great material that I really enjoyed.
I hope this helps in some strange way
