The way I tend to evaluate a site like the one you linked is by looking at what they way about Hypancistrus zebra. The were the first pleco I started with to breed. I kept them for about 16 or 17 years and they produced well over 500 offspring. I am still a mod on the zebrapleco.com even though the site is almost inactive. It is owned by the same person who own Planetcatfish.com.
I can tell you this about their info on breeding zebras. It is not very accurate. I can also tell you they are not well suited to a community tank. If you provide them with the sort of aquascape they need, you will almost never see them. But I must also say I am not a bit tetra keeper. I currently have Inpaichthys kerri aka purple emperor. I have kept rummy nose, both Hemigrammus bleheri and Hemigrammus rhodostomus, Finally, I have kept caedinals, Paracheirodon axelrodi, and at one time had 65 of them in my inwall 75 gal. ANd that is ir for me and tertas. So I cannot comment on the info on tetras at Aquadiction
But, when I see what I know is not very good info on zebras, I assume that is going to be the case with some number of other species on a site with info an multiple species..
I think I will stick with Seriouslyfish and Planetcatfish for my info. I also find it easier to navigate both those 2 sites than I did the Aquadiction site. But that is just me. I will say this about their site- they do have pretty good pictures and vids.