I don't think posting a review that says your plugin has compatibility issues with other plugins is bullying. I think it is good information for those of us considering purchasing it.
People don't run your plugin in isolation. Your plugin is going to be one of many on a server. Most developers on here understand that and are willing to make their plugin useful for more people by adapting it to work with other plugins.
Nobody is threatening, manipulating, or bullying you.
That is fine. Have a closed minded attitude and sell fewer plugins than you could if you were to be open to the idea of adapting to what customers are wanting and needing. But don't get upset when someone calls you out on it. The market will decide, especially now that reviews are no longer censored.