Above all else that's important to a wheel is to know that it bolts to your hub with a given bolt pattern.
I rally for the movement of requiring the bolt pattern in the thread topic front and fucking center. I hate seeing great wheels with great offset and great wheel specs only to find out it's the wrong god-damn pattern for my car. Always makes me go
and makes me feel like shit. This is one step just below getting cockblocked on the scale of feeling shitty.
Above all else, a wheel should at least be able to mount to the hub right? All else should be secondary, but still appreciated. If a bolt pattern doesn't fit on my car, I don't give a shit what tires are on it, or what the wheel size or width is if it doesn't fucking bolt up.
I imagine it would make everyones' lives easier if they didn't have to go through half the threads to find out it isn't the fucking right bolt pattern. It would also make searching through this shit a lot easier. People can use the browser search for 5x100 wherever it pops up in a thread title rather than using the forum search tool and wasting valuable bandwidth.
Having bolt pattern requirement in the wheels for sale is as essential as having a FS/FT/WTB to indicate first and foremost what the intent of the thread is and what you are intending to sell within the thread.
Please mods, make it fuckin' rain with my request.