Yes, my wife often accuses me of being too optimistic!
I don't think that InStitches is too egregious, actually. He doesn't wear clip-on braces with $1000 bespoke pants, he doesn't wear a felt flower or some sort of gee-gaw in his buttonhole, he doesn't wear the back of his tie far longer than the front and he wears socks with his shoes.
Sure, he's perennially jumping on to the latest SF bandwagon, whether it be shoes, shirts, ties, suits or whatever else is most popular or at its peak in the StyleForum hype cycle, but he's only one of many in that regard.
Speaking of the SF hype cycle, that is one of the things that irritates me most about SF (although it's certainly not unique to SF - I've frequented car discussion boards that were very similar, with the latest hot product being popular for a few months and then replaced by another hot product).
In the past eight or so years on SF, I've seen crazes over Santoni FAM shoes, Ferragamo Tramezza, Edward Green, C&J, Vass, Carmina, Meermin and more. Each was, for a while, the latest and greatest and people leaped on to the bandwagon and proudly showed off photos of their latest babies, only to seemingly forget about them and to proudly acquire a pair or two of the next SF darling.