The general retro thread is for collecting and any stuff that doesn't fit in a dedicated thread though. Displaying your retro stuff is this thread.
I know I wouldn't partake in an upscaler thread, as I have absolutely no interest in playing on a laggy TV through a laggy converter with weird artifacts and stupid downtimes when the resolution changes, when the ideal solution exists and is cheap. As such I would never had been able to answer Peagle's question about modifying her Scart-BNC adapter to output to her Framemeister, for example.
With a thread dedicated to upscalers, you keep knowledge out of people wanting to play their old games. The new people would never be aware of the greatness that are CRTs, and that there are other solutions than using a modern TV to play games.
This is a partisan thing. Again, I want to stress that this thread started as very biased towards the upscaling solution, and that #teamcrt started to propose alternative means to play games out of frustration, noticing that many people didn't even know about this solution, and many of them were happy to change their mind and go to the obviously superior CRT way.
I don't want to say that a CRT is the absolute best in every situation, and I'm aware that for some people an upscaling solution is better for them. But to make the decision of what is the display setup they really want, they need to be educated on both. Having two separate threads would fail in that regard.