Some people have a very loose definition of what "malware" is.
I can't speak on StrongerAds at all, but I assume that like any network, they work with advertisers. Sometimes advertiser's site or their download can get blocked by an anti virus. Not blocked because they doing something illegal like adding users to a botnet, installing fake AV software, or stealing banking information (stuff that comes to mind when most people think of malware), but because their toolbar is labeled as "adware", or the domain/source code is considered to be associated with "spam" (some people really have a broad definition of that term too).
For example Malwarebytes blocks a lot of different web sites. A lot of false positives. I have even seen CPA Advertiser's web sites get blocked too. If I didn't know better I would just think that Mb was blocking something harmful to my PC, when really it's at worst something annoying.
Again, I have no idea about StrongerAds and I'm not suggesting anything about their offers. I'm just talking in general here to give a bit of perspective.
