I never worry about people not taking my work seriously as a result of the humor. In the end, the comic's best trick is the illusion that comedy is effortless. That people imagine what he's doing is easy is an occupational hazard. Cary Grant never won an Oscar, primarily, I suspect, because he made everything look so effortless. Why reward someone for having fun, for being charming? In "serious" fiction (as in "serious" film) you can feel the weight of the material. You expect to see the effort and the strain of all that heavy lifting, and we reward the effort as much as the success. Comedy is often just as serious, and to ignore that seriousness is misguided, of course, but most writers with comic world views have accustomed themselves to being sold at a discount. Most of us wouldn't have it any other way.