I’m quite lucky living in the Peak District as there are trails that are rideable year round. However, some of the best trails on my doorstep suffer badly in the wet and I’ll avoid these because I want them to stay great. It seems that there are many that don’t take this approach and it always saddens me to go back to these spots and find ruts so deep that you can’t ride them, and former ribbons of single track turned into wide sections with multiple ruts.
Sometimes you find yourself on a wet or boggy section of trail because you don’t know the trail well enough to know how it would have coped in recent weather, but even if you do then you can limit the damage. In such cases I always ride through the puddle or boggy bit, not around, as I don’t want the trail destroyed. If you’re out riding in those conditions then you’re going to get wet and muddy anyway. If it’s really bad then I’ll either get off and walk that section, or turn back if it looks like those conditions are going to be prevalent.
If I lived somewhere without the option of trails that don’t suffer in the wet then I think I’d probably spend the winter going to trail centres or road riding. I’d rather take the hit in winter and change what I ride than have to ride bad trails all year long due them being destroyed in the winter.
Everyone hates seeing trail sanitisation, but it seems that there are a lot of riders that aren’t prepared to think about the impact that their actions have on the trails.