I tried to find any other sources that corroborate that tweet, but I couldn't and journalists like Klippenstein are also asking that in the replies. Of course It would 100% not surprise me if he was revealed to be a groyper, but on the other hand considering how incoherent some of these kids' ideologies are these days, could it be like (I think he had some odd stuff with like rationalism and effective altruism(?)) who also was beyond internet-pilled from the engraved bullets? I could be wrong here but for some reason I had that remembered together when reading up about him).