The official definition of spyware is any software that exposes your data out on the wire. It doesn't have to actually be intended to do that. Just opening the security hole is sufficient to meet the definition.
It's your table / your labels / your definitions so I don't mind really. I just needed some clarification because it was stated as fact that dash is ...spyware.
I already updated the table to link to our discussion and added "potentially improving". So hopefully it is clear to readers that the characterization is contested to some degree.
I somewhat agree with you that "spyware" is a bit harsh and doesn't imply that the mixing might work in some scenarios, except in another sense I think it is unfair if I don't draw attention to the fact that it can be the opposite of anonymity and actually increase the odds of intercepting user data in clear text in certain attack scenarios. For example, it provides prefiltered list of those who are attempting to be anonymous which is one example of why multiple rounds won't help in some scenarios of "privacy".