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But all such discussions without a barter system at the moment are unlikely to lead to anything:)
In general, yes, but it is possible to do something on my side. For example, yesterday I wrote a small code that forces plugins to send a message to the chat that the plugin is connected. This way, you can see which plugin is connected for which player. At the same time, you cannot connect one plugin under the name of another, since they send different messages to the chat.
But a full-fledged anti-cheat can only be done by the HD mod itself - by interacting the server and clients with calculating checksums of connected plugins.