This is a ridiculous position to take and will lead to both needless pain and suffering (average Russian citizens have quite a lot to deal with, not the least of which being their devalued currency) and direct harm to actors inside and outside Russia using this infrastructure for critical communications.

It's not at all a stretch to imagine that some of this infrastructure is being used to provide political and social support to Ukrainian positions and/or to assail Russian positions. Some of that support most certainly comes from within Russia.

Namecheap is not a gaming site: you chose to run infrastructure and when you run infrastructure you must run it as if lives depend on it. There is no way you can know what chains of dependency and support rely on you and there is no way you can know if the eventual beneficiaries of those chains are good or bad actors.

If you see an account behaving badly, remove it without collateral damage.

Otherwise, keep the lights on and keep doing your boring job.