Maybe. But we also have plenty of nostalgia posts here about "remember that struggle session?" Literally one just yesterday about the BRICS girls struggle. Again. There's even that hexbear lore iceberg meme image that floats around sometimes. All it takes is skimming a single nostalgia thread to get that level of hexbear specific knowledge.
Their "the newsmega was the worst" part is what makes me think they probably were here for just a little while, though. Probably someone who couldn't let go of their imperialist brainworms and were flabbergasted at how we weren't all backing the poor smol bean wholesome Ukrainians and got their ass handed to them by people who actually have some understanding of geopolitics and history. The "treating it like football" is bizarre because the situation was the exact opposite, with the newsmega regulars often pointing out that that is exactly how the blue-and-yellow flag emoji people treat it, and ridiculing that kind of simplistic non-analysis. It's the typical accusation that's actually a confession.
My guess is that it was some lib who fancied themselves a leftie, who hung out here once or twice before the Ukraine conflict kicked off (when the newsmega was created, basically), said something cringe about it after it did and got schooled as a result. Rather than learn, they ragequit, unable to fathom how people who clearly knew much more than they did didn't support the typical US State Dept. narratives, which they still hold dear to their heart. Now they have constructed some bullshit scenario about it for the .world hexbear-hatred thread that also made them feel better about themselves.
and 
The guillotine is for reddit itself and its transphobic defenders.
I agree that voting doesn't matter in terms of making a material difference in the social hierarchy because the US is not a democracy. However, who a person votes for (or whether they vote) is an indication of their values, which are in turn an indication of their future behavior, and anyone who votes for the regime that is currently conducting a fucking genocide demonstrates either their ignorance (which it seems OP's friend cannot claim as a so-called socialist) or a fundamental lack of solidarity with those who are being dehumanized, tortured, and murdered, the victims of that genocide. It demonstrates a fundamental lack of solidarity with all oppressed peoples of the world. Just because voting doesn't matter with respect to who wins the election, it sure as hell matters on an interpersonal level.
It has next to nothing to do with electoralism as it is only tangentially related to the election itself. Again, it is about a person's position relative to class struggle. If a member of the ruling class were murdering your family and your friend decided to throw in their support to that murderer with the rationalization that that murderer might benefit your friend more than some other murderer, it doesn't matter how inconsequential their support is - it still tells you a great deal about your friend's priorities and interests which don't actually include your dying family or other oppressed people, only themselves.
Everything else aside, this is still terrible advice. Lie to your friend about your principles regarding genocide to "better maintain a friendship"? Gross.
Socialism is not nihilism.