Comment by rcxdude
This is a general issue with interpreting scientific papers: the people who specialize in the area will generally have a good idea about the plausibility of the result and the general reputation of the authors, but outsiders often lack that completely, and it's hard to think of a good way to really make that information accessible.
(And I think part of the general blowback against the credibility of science amongst the public is because there's been a big emphasis in popular communication that "peer reviewed paper == credible", which is an important distortion from the real message "peer reviewed paper is the minimum bar for credible", and high-profile cases of incorrect results or fraud are obvious problems with the first statement)
I completely agree. When I see a post here I had no idea if i's a good journal or a crackpot journal [1]. The impact factor is sometimes useful, but the level in each area is very different. (In math, a usual values is about 1, but in biology it's about 5.)
Also, many sites just copy&paste the press release from the university that many times has a lot of exaggerations, and sometimes they ad a few more.
[1] If the journal has too many single author articles, it's a big red flag.