Do what you want on your days off but coming on a public forum and advocating a concerted effort really will be used against the group in court... And by extension, mediation. If the pilot group are really enjoying time off instead of picking up open trips that are worth less and less in today's dollars, that's the free market forces at work. If people really are trying to tell others not to pick up (or shaming those who do)... That is a job action. Tread very carefully. This forum is the first place company lawyers will go for evidence in an injunction.