A while back Nuthatch posted a typically well thought out post about some arborglyphs she'd come across. I sent her a comment about how many different languages I'd seen them in. I've finally looked out this rather interesting carving in (what I think is) Kanji script.
Because of the script I've always imagined it has some deep poetic or symbolic meaning (not that would make it ok to carve crap in trees) but it probably says something like "Dave was here" or "Harry loves Sally".
It doesn't really detract from the tree in this case because its one best appreciated from a distance:
If anyone knows more about the script or what it says I's love to hear.