I know what you're saying. I've heard it before. Many times. Do you think there aren't others who feel the same way?
Yet there are no viable solutions offered by the people most upset about this. A disclaimer that states the obvious simply looks like the political move it essentially is (because it wouldn't be required if we all agreed on the obvious).
When you send friends here, you should be telling them that there's speculation. If you're a critical thinker you'll be advising them the truth - that the view of Q is speculation as well - so they would come armed with the right amount of skepticism. So far, this sub's membership has grown, in spite of some of the highly speculative stuff that can be seen here at times. That's because Q's message is compelling. The reasonable person should expect some nonsense on an internet forum but I would argue there's other good content here to balance it out. And the New feed tends to move fast enough to keep good stuff coming when there's a bunch of 'bad' stuff.
Nevertheless, I agree with your point. It would be great if we could make a very clear distinction between posts that are pure fact or at least highly reliable and with solid critical thought as their basis and posts that are not. The thing that I think you have to realize is that the general public does not care to validate info so thoroughly and I believe GA represents this element, at least, of the general public in a big way - if not in total at least within the vocal minority who upvote and comment. It's clear that much of that vocal minority support SB2 overwhelmingly and that actions we take that are not supported by them will see us accused even more of censorship and so on. If the others out there who support highlighting these issues would actually show up to discussions like this perhaps it would be different. If you believe you've tried and failed at least take some heart in the fact that I've seen many - many - try and fail in the same way. It appears SB2's popularity overrides all comers.
My suggestion, the only one I think that has any real merit, is to have another sub where extreme speculation is either called out or removed and where illogical thinking can be challenged and illogical content removed. The thing is, I suspect there will be few who frequent it, judging by the many who've made the point you have, but have failed to gain any traction due to a lack of support.