I thought a dog whistle in current popular use was a headline or sentence meant to imply something hidden, usually racist/sexist/other-ist. Like the phrase 'those people' or something like that.
How is this headline implying anything other than what it says, or is my interpretation of that phrase wrong?
A dog whistle headline would therefore be attempting to round up a bunch of people to fight their fight for them.
And had they been doing good, wholesome things at their company instead of creating spam tools, it probably would have worked. Unfortunately for them, people are starting to learn to dig a little deeper before getting out the pitchforks.