There are exceptions, though. Some provide very little detail about who has produced them and why. The other day, I happened to stumble across this website for Llanegwad. At first sight, it’s little different from many others, listing all sorts of useful information. It even has a section about the Welsh language, and some helpful guidance to the meaning of some place names.
It goes downhill rather, however, when it comes to this little piece about the Language and People. It reflects a viewpoint, of course (and although it’s a rarer viewpoint now than it used to be, we’d be deluding ourselves if we didn’t understand that it’s not as rare as we might like). And it’s a viewpoint which people have a right to express.
Quite how it fits into the idea of a community information website is rather a different question - 'information' it is not. It is opinion masquerading as fact. I can’t really believe that it reflects the reality of opinion in Llanegwad.