I wonder what they expect by giving him a show-cause letter, when he has already resigned from all party posts. He is simply an ordinary member of the party allbeit, a former official of the party.
By getting involved in PDC, he will be active in promoting Penang for investors and that will enlarge the federal coffers via taxes, employment etc.
If he is punished for just trying to contribute to Malaysia's economy, it reflects poorly on Gerakan and the BN. By the same token, anyone who voted Opposition would be wrong to continue working for the federal authorities.