Ya, i choose not to speculate on sandstorm yet, maybe thats the main issue there. I am not suggesting that we treat them differently (though some people are), I would say all other weather based bans need to be held off until after rain-boosting is gone. Look instead at the arguments for banning drizzle that have nothing to do with other weather... sand may completely change with rain boosting gone, and we have no idea which parts will be bad or good, or even what will happen.
Very well, and that's a valid point.
However, I also wish to bring up the fact that we already have a set, working precedent on how to ban specific pokemon in order to balance the playstyle. Unlike Drizzle/Swift Swim bans, there is essentially no risk of a "slippery slope" because banning sweepers like Kingdra has been done before successfully, while the other two suffer from the fact that we've never implemented such a ban (besides the near-unanimous Inconsistent ban), and we have no clue if such a thing can work without causing a slippery slope.
Basically, the essence of my argument is
Occam's Razor, that is, while banning Kingdra and co follows an existing system of suspect testing, the other two systems introduce unnecessary complications for little to negative benefits.
This is in addition to my previous arguments, such as that banning sweepers would also preserve all playstyles involved to a greater degree than the other two proposed bans would.
Edit: also, the reason why people are talking about "like in gen four" is because that was a stable metagame to compare it to. If rain was stable in that meta, it is one example of why abilities like swift swim might not be broken by itself... (also not the only reasons being given)
In the context though, it was used as in, "why not make it like this since it worked in gen IV?". That, as far as I can tell (correct me if I'm wrong), just means people want to return to the stability of gen IV instead of finding a NEW stable metagame of gen V.
Gen IV may have been stable, but I HIGHLY doubt we would have to shape aspects of gen V metagame after the Gen IV one in order to attain that same stability.
Umm...I think many HAVE explained why they're against Drizzle...pages and pages of arguments going back and forth going for and against it. And I did propose a metagame of ALL AUTO-WEATHER being not allowed. Not just rain or sun or sand which therefore is not biased. Doryuzu is almost nothing without Sand unlike Landlos/Garchomp/Tyranitar/Gliscor. It'd be like one of those rinky-dinky kink usages like Kabutops or Kingdra without a permanent sandstream. But anyways.
Without weather, it would be a COMPLETELY different metagame, one probably more fun to play. Won't really know until it happens but by this point for some people, anything would be better than facing another weather team. You'd actually be able to use, oh I don't know, more fun pokemon and pokemon that are good but are pushed aside and made irrelevant by weather.
And I don't see an issue there. Clearly Rain (and weather but mostly rain in this case) is a dividing issue. How about 1 OU Metagame with Weather (aka the Uber-Lite) and 1 OU Metagame without weather and compare to see which people prefer and like more? Because let's face it, it is an Uber-lite tier right now with weather. Other than quirk niches (mainly for being able to somewhat deal with weather), the only things that are being run are weather pokes, anti-weather pokes, and things that change weather. And you see the same pokes EVERYWHERE. If it isn't a weather sweeper, then it is a Tyranitar, Nattorei, Landlos, etc.
Here, the problem isn't that your idea won't work, because it likely will with enough tinkering.
The problem is that while you can make changes that work, I can make changes that work, other users can make changes that work, and we'd have 50 different possible ideas of what gen v metagame could be, all of which potentially work.
And this is why, IIRC (correct me if I'm wrong), Smogon's general policy is to go with the more conservative route; that is, the working metagame that requires the least bans, changes, etc. Otherwise, if we don't have that criteria, how are we going to choose among the hundreds of possible metagames that the smogon userbase could create if allowed to?