Well as nearly everything analog 'it depends'. In the first place it depends from the question if the stylus needs cleaning. One need to look at the stylus with a
magnifying glass to discovere the truth. In the second place the fear against wet cleaning should apply for the styli which are glued in the cantilever. The fear is based on the assumption that fluid may disolve the glue. But many cantilevers are made from aluminum (alloy) in which the stylus can be pressure fitted. That is to say without any glue. This is, alas, not the case by the so called 'exotic cantievers' (boron, sapphireberyllium,etc). But we have no idea what kind of glue (or cement) is used in our exotic cantilevers. Such info from the producers would be much more useful than the usual specs. In many cases there is no substitute for wet cleaning. Look at your stylus with a magnifying glass to see for yourself.