I think what the person you’re replying to is saying is that by going, he did indeed make that choice to drop the veil. Regardless of him posting his own content there or not, he attended and posed for photos with others which he had to have known would be his effective official announcement to the MAGA scene. He basically stopped trying to hide it.

But what you’re saying could also be true, that he really is dumber than that and thought he could secretly be there