Earlier quoted context omitted.
For sure. But the question is whether vanillin is produced during wood decay.
It does https://www.sciencedirect.com/science/article/pii/S134035400... https://www.jstage.jst.go.jp/article/jjfs1953/37/7/37_7_298/... > vanillin was also detectèd as a product of wood degradation by some other wood destroying fungi.
Good find.
The levels of vanillin in waterways (14mg per liter) are ridiculously high for human urine to be the sole source.