I agree with you there; the comment isn't really supported by any tangible evidence, and it's plain rude
If someone posts something like that, I think the best solution is to post nicely, rather than flame them, 'cos you're just dropping to their level.
I may have posted saying things like 'the smoke looks awful', but really I hope to never do so again. Or if I feel that way, say: 'Oleg, look here______the smoke looks a lot different than what we've seen in SoW. Will this type of smoke be modelled, or are you still finetuning the process? Of course this aspect of the sim will be hard to get accurate, as there is little evidence to use for this which shows the smoke accurately, but it would be interesting to have an insight into how you model damage effects like this.'
Whilst some may say that asking Oleg for such an insight is rude and too expectant, I feel if you're polite than all Oleg needs to say is 'no, sorry' or completely disregard the post altogether if he wishes
Sorry to have gone AWOL (again)