I've been doing this for roughly a decade, and have experimented with a variety of tactics and approaches. I still experiment, I'll go back to something that didn't work previously but change something to see what element is actually responsible for the lack of success.

Most recently, I had a friend post an article on FB with some inacuracies. I made a short rebuttal in a 'building bridges' style with a peer reviewed scientific article to support it. 30 minutes later I see my comment has been deleted. No - response, not even by PM.

Now the interesting thing is this same friend has responded much more positively to me making a sarcastic one liner or just saying it's a load of shit. She'll always try to take the conversation private, but I actually get her talking and thinking about the issues.

I've done the same with others - if I attack them head on, insulting them for posting something that's so retarded, they listen. If I'm calm and rational about it, they ignore (if they don't go as far as just deleting).

This is important to think about in the context of the concern trolling we see on this sub a lot. Saying that it's all about attacking feminism and we should be more constructive. The MRM has existed at least as far back as 1908 with Ernest Belfort Bax's The Legal Subjugation of Men - based on the introduction it's even older than that. Hardly anyone knows about this, they think it's a new thing.

What's necessary to debate with feminists is to strike a nerve right off the bat. Say a single sentence that they consider incredulous - or that's explicitly offensive to them. They get upset, and commit to arguing with you. This is the bait. If you can't get them emotionally invested, you can't talk to them.

If you present a well researched argument in a neutral tone, particularly with a source, they will pretend they didn't notice it, hope nobody else does and move on to the next thing. They know they don't have good arguments, so they won't engage if you open with one yourself.

This doesn't mean you don't have sources backing up your argument, what it means is you don't reveal that you have any until they're really incensed. Wait for them to demand you provide a source for your claims (you can draw out this demand by gradually making your claims more specific - rather like escalating your bet each round in poker). Once they've demanded a source, and you provide it, they'll actually read through the whole paper looking for a flaw in it that they can attack.

A few things will happen here. One, they'll realise it's solid, they can't contradict it and just go silent. They'll make excuses later about how you're just stubborn, but they actually did read it and internalised it. They usually won't make the same claim in the future, but if they do you can call them out on ignoring what you provided previously, which being a personal attack will get them involved again.

Two, they'll find some niggling detail and argue that. This is OK, at this point you switch to the rational debating mode - they're invested and arguing with you so they won't walk away so easily - and keep explaining why their objection isn't valid - or provide another source to back you up.

Three, they'll acknowledge that it has some validity and that they'll have to give it more thought. You'll never get a complete admission that they were wrong and you were right, but that isn't so important. You're influencing their position and they're going to gradually shift.

You can't escalate from rational to direct attacks; that makes it look like you're losing. But you can de-escalate from direct attacks to rational - nobody's going to suggest that you feel you're losing because you suddenly switched from being incensed to calm, and it makes some of their common accusations just seem ridiculous (which you can calmly point out to them).