The identity of an individual who points me to external evidence has no influence on the validity of said external evidence, and the evidence must be weighed on its own merit; to believe otherwise is ad hominem. It's true that Ukraine attempted to suppress their rebellion with extremely sloppy application of brutal force and that's tankie activity no matter who is doing it to whom.
Furthermore, as far as whatever violent tendencies may be exhibited by people who have been living in a war zone for ten years, you could be right. Or it could be that they weren't the ones who violated ceasefire repeatedly back then in the first place and wouldn't be the ones to violate such a ceasefire in such a hypothetical future - since the Russians in the PRESENT have demonstrate a pattern of repeatedly violating ceasefires and MAY sabotage it in the future while trying to frame these people (which is what "might" have been happening in actuality ten years ago)
Yes, how vile an implication it is, that Russia will attempt to hold these people hostage and use them as human shields, all over again, as if we would never see it coming.