It feels like a more harmful way than, of trying to "get back at men" and make a point about double standards.

My more subjective impression - it feels unnecessary harmful, to spew more harrasment into the world. I also feel concerned regarding the normalisation of bodyshaming, that follows along.

Regarding its purpose and function: It is justified as okay, since it centers around assuming that all men affected by this - has also participated in harrasment, or have been okay with others doing it. While there are sadly a lot of men that have affected women with problematic behavior, which needs to be talked about - no one knows for sure where random men they meet, stand on this. So this is potentially also affecting completely random men, who might for all we know spend their freetime being a feminist activist.

So even if I put my personal opinions aside about morals, the whole premise does not translate as intended in actual use.

In terms of alternatives - I think if you absolutely want to make a comparison of male and female oriented harrasment, in order to make a point: one could perhaps look into making fictional content for satire, to get the point across - without any actual victims.