I would suggest to ban all Russians from entering this forum and lock Russian section.
Like others, I don't see any value in censoring an entire group of people because of the actions of their government. More likely, their government will cut off their access to the forum as they do not want people appearing as dissidents. In times like this especially, it is important to give everyone a voice. You specifically seem to need to hear this voice so that you can understand that just because someone is Russian and their country is doing something you don't like, doesn't mean that they are evil people who should have their rights taken from them. I'm sure many of those people are passionately against the war, probably a lot more than you are and would appreciate any normalization of their lives they can get right now. So long as the individuals are respecting the rules of the forum and not attacking other individuals with lies or personal assaults, I don't see why they should be deplatformed.