That's just virustotal; that doesn't even scratch the surface unfortunately. My domain got taken down by a report to the registrar and the registrar having a faulty email server (I found that in my mail server logs afterwards) couldn't reach me (could have tried calling but I don't fault them). The reporter was netcraft, apparently considered reputable (the information they reported was false though, like they claimed a timestamp and continued hosting of a file that was not the case anymore at the claimed timestamp). Basically the worst one I had to deal with, yet they're not mentioned in the blog post. I don't know all the other names off the top of my head but I don't recognise any as vendors I've already tried to deal with so it's not a complete list by any means

Not all-or-nothing. Getting off of some lists will get you unblocked for 90% of clients, as presumably is the case for the ones you look, but perhaps not for this one security vendor used by the company you work for and so you can't use your own fricking website half the time

I appreciate the pointers though!