Do the work you say you are going to do then. There is no legal proof the person who clicked "ACCEPT" is the same person playing on a private server. Since the software is downloadable, there is also no proof the version being used is or is not even the same as a copy that may or may not have been purchased.
I don't expect some people to understand rational thought, but I hope they at least try. A version of a game no longer supported is considered Abandoned. Not by just myself, but by gamers as a whole. A game no longer purchasable in it's original state.
Warcraft RTS is considered abandoned. Starcraft is not, since it is still sold in pack bundles. Nobody complains either way, since these games can be played they were originally designed to be.