That is true that people oil their MAF. BECAUSE they do not follow the cleaning instuctions properly. It take 20min to clean a very dirty filter, a couple of hours to dry. 10 min to oil and another few hours for the oil to soak in and the excess to run off cleaning the excess off with a rag.
96 GQ coil/Cab
08 G6eT
Also Mark the OEM and Ryco filters are oiled but you only need to lightly oil the KnN.