They sort of tell you why. They say that there are "possibly" dangerous links. Even though nobody ever got malware from my site. I suspect that when I link to some of the smaller sites with information not generally included in regular newsfeeds, they are flagged as being 'potentially' dangerous by Google. So, now I have to test the site, remove the links and ask Google repeatedly to remove the blocks. It is just a lot of (unpaid) work. Eh.
That is too bad. We have placed a lot of power in the hands of these collectivists, and it is not good.