The legalization of recreational marijuana use in Washington and Colorado has raised a number of big questions about the social, legal, and economic implications. What are people saying on the ground in these states? And how has this change already altered attitudes toward marijuana?   Dominic Holden is news editor for The Stranger in Seattle, Washington. He has been following this issue closely, and wrote an article entitled "It's Not About the Stoners."   Bonnie Dahl owns a head shop called The Fitter in Boulder, Colorado, along with her twin sister Betty. The Fitter is something of a Boulder institution, and has been so since it was established in 1973.