Skimmed first page, I think I have cancer from that.
Everything you read about mechanical keyboards is complete bullshit, and you shouldn't even care about what they say. What matters the most is you and some statistical facts.
I can go on about how Topre is the godswitch(because it is, get real), but Topre is out of some people's means of purchasing and worse is people who have the means think it isn't.
P.S. this is awfully off. No one likes buckling springs unless you're stuck in 1970, Topre is godswitch but too expensive, Cherry MX and ALPS can't be grouped together they're completely different, Cherry MX clones are clones thus they feel exactly the same and no one can tell the difference because they're clones.
On a more technical standpoint, to my understanding a mechanical keyboard will last you longer than a scissor switch keyboard. The only benefit to mechanical keyboards is if you enjoy the feel more than other switch types, and for some people the actuation not being at the bottom is quite important. For me personally my fingers start to hurt after I bottom out for a while, and this really only happens on membranes, because that's the type of board I'm forced to bottom out on.
TL;DR: Pick whatever you really like, and what suits your needs. If MX doesn't have it, then maybe its not worth all the hype that comes with it. If scissor switch is your favorite switch, you're probably just smart for not buying into MX hype. (topre hype is rl doe)