Add in the comments from feminists and you are golden.

I'm speaking of averages here. So while there are a few feminists who might be included it's a minority of them and mostly it's only on specific topics/issues/comments. That's a little different from most egalitarians being indistinguishable from most MRAs without the labels.

I have to disagree pretty strongly here.

Again I'm speaking about frequency and degrees. Pointing to examples of the contrary doesn't mean that it's indicative of the whole sub.

So it is just like every other gender movement?

I understand the ideological designations of most movements because they're explicitly mentioned and forwarded by the groups themselves. I know that Marxist feminists, for instance, will look at gender issues through the prism of class and economy. I understand that the MRM looks at specific issues regarding inequalities that men face but don't really subscribe to an overarching political position - though demographically they seem to lean libertarian.

But egalitarian doesn't actually tell me anything about the persons beliefs at all. Every political ideology or theory, every movement is egalitarian, except for the most extreme like white supremacists. It's a trend of thought that's vague for the most part which means "For equality of some sort". That basic idea then gets molded into more specific theories depending on how one defines equality, what model they use to figure out what's optimal and so on.

Egalitarianism though is a vague and generalized statement that doesn't offer me any information on what the user actually believes. As it's used on this sub it's meant to indicate something specific as people often say that X, Y, or Z isn't egalitarian. But what they really mean is that X, Y, or Z doesn't fit their definition of what equality is. There's just no consistent application of egalitarianism that allows me to see what the label means beyond a vague acceptance of equality which ends up being so broad that it applies to everyone, which means that the label would offer the same information as saying "human".

And you can with feminism or the MRM?

Yes. Easily in fact. The MRM is a movement which focuses on male inequalities and issues in society. Within the MRM itself there's a couple of divisions of thought which range from traditionalism to anti-feminism to a kind of libertarian perspective on gender issues, but for the most part there's a specific goal and a specific way of viewing gender and society.

Feminism is exceptionally easy to do this with because most forms of feminism explicitly state what framework they're operating under.