Is kda 0-21-4 flagged or considered as international feeding?

International feeding is a good thing. We need more of that.

For intentional feeding, intent is the only thing that matters. Someone can be 0/1/0 and will be punished for intentional feeding if their intent can be proven without a doubt.

What game time is it, and what are the circumstances?

It probably is, but there are other factors that should be looked at anyways.

If it was intentional yeah. Otherwise no

Depends on how it happened.

If said 0/21 is literally running down one lane repeatedly the system will see that, but if they are just dying in various places at various times it's more than likely to not be.

I assume yes as long as it got reported

International lol. Anyway, idk. Depends on the game length and whether the deaths were intentional. Im gonna say "probably".