Having skimmed the thread, I'm sure my thoughts will be echoed, in full or in part, by a few people here.
Personally, I have no problem with signature instruments, but only if they are a somewhat, or possibly even bold, departure from the normal rank & file brand instruments.
¹ That, or if it's a decent reproduction of a since bygone instrument.
² If it's a name slapped onto a fairly ordinary instrument? Boring!
³
And while I do not currently own a full, signature instrument
⁴, I have taken some parts and/or inspiration from certain siggys. For example, I converted a Mighty Mite Jazz into a P/J, mirroring the testing and engineering put into the Fender Reggie Hamilton Jazz...
...built my
Projekt Black parts-bass around a Fender Geddy Lee body...
...then, gave that same bass a bit of a
"facelift" with some inspiration from a Fender-Japan
"Ventures" signature bass.
So, to the manufacturers out there
(who will likely never read this post), make 'em different...make 'em special...and not just a hunk of wood and metal that bears someone's mass-produced autograph.
¹: Fender Reggie Hamilton Jazz, Blu de Tiger Jazz, Stu Hamm Urge, Roscoe Beck
²: Fender Flea Jazz
³: Fender Dee Dee Ramone Precision
⁴: I owned a Squier Mikey Way Mustang, but not for too long. The body kept yanking the neck upwards and the sound was too "monochromatic" for my tastes.