The people quoted in the article are named and have their titles presented. We are able to research their history and expertise if we desire. An anonymous poster on the internet has neither name or qualifications. When the anonymous poster posts "they find it far easier to believe" a theory counter to an article, knowing their qualifications helps level the playing field.

If you had to choose between investing advice from a named financial expert or from me, an anonymous internet poster, you would be wise to either go with the named expert (who you could research their qualifications) or ask me for information on my expertise.