Since Valheim isn't a competitive game it seems it would be irrelevant either way. I mean with console commands, mods, etc... players really police themselves as far as exploiting a game mechanic or otherwise acting in ways the devs didn't intend.

I would also wonder about going to the Ashlands early on a map and exploring a lot of it. Then on release count that since it was already explored it wouldn't have the new content but may be suitable place for new agriculture in a way not intended either. I had a old Mistlands map like that where I could potentially grow mushrooms uninterrupted by seekers.

At the end of the day though people can only cheat themselves. As long as they are enjoying the game what anybody else is doing shouldn't impact your fun or your experience. The game has far too many ways to "abuse" it available but again since it isn't really a competitive game it doesn't really matter.