thing is, one or two venues near me, including one that’s closed and reopened a couple of times, have posted about the importance of buying a drink or a coffee (if you can) while you’re at events to help them stay afloat and that’s encouraging, makes you think “yeah, I wanna help out.”
whereas “we’re going to try and trick you into being here for longer so you buy more drinks and we’re going pretend it’s all for a different reason, in support of a different course that our website suggests we actually don’t care a great deal about” will not generate much goodwill in that regard.