[tel]

Without commenting on whether or not LamdbaConf is actually doing those things, the perception that it is is both (a) out of the control of LambdaConf and (b) completely up to the interpretation of, e.g., the PrlConf organizers.

In some sense, speaking at a conference or even a subconference is an act which builds the platform of that conference. If one wishes to not give energy to a platform which supports people who one believes should not have a large platform... then I can't really see what's wrong with canceling PrlConf.