The wetlands issue is a good example of how today's environmental lobbies have gone berserk on land use issues. No matter how small the environmental benefit or how high the cost to individuals, the "environmental" lobbyists must achieve their restrictive goals. Government agencies which get to increase their regulatory powers over citizens are more than willing to accommodate.Y. Leon Favreau, Shelburne, N.H. Letters are welcome. Only a selection can be published, subject to condensation, and none acknowledged. Please address them to "Readers Write," One Norway St., Boston, MA 02115.