Comment by rcoveson

I doubt you're implying that scientists should "say for certain" even when they aren't certain, or that they shouldn't say anything at all. So I assume you're just saying "misleaders gonna mislead", which is true.

But as long as we're bringing up general social woes, I'll point out that those misleading statements are pretty tame by today's standards. The more popular strategy now is to just lie outright.