Not reading the manual works fine with prebuilt synths, I should note...in fact, Brian Eno has long advocated for the "switch it on and see what it can do" approach. But with MODULAR...there's just too much that can go wrong, malfunction, blow up (unkeyed bus header funtime!), or kick you back several feet when the screwdriver slips a millimeter. And aside of the obvious hazards, not every function works the same on every module. Not reading the manuals for modules, especially when something seems unclear without their counsel, is just plain 100% dumb AF.
Even after 40+ years, I know that you just DON'T DO THAT. But then, I'm also comfy working with amateur radio gear that won't merely bounce you around the room when you touch the wrong thing...it'll just outright KILL YOU.