Agreed with the others, take the logs.
I believe a small amount of time (Like maybe a few hours), the logs would be public for you. Meaning they shouldnt be chopping down tons of trees making log stacks for hours / days and expect them to not be used by others.
If they were really wanting the logs, they would cut a tree or a few trees then haul the logs. Not cut down 10s of trees and let them sit for days.
TLR If they are there for hours+ take them.
I wouldn't have waited two days, maybe 15 mins if they never came back.
it's a ffa game- if you see it you can take it as long it's not inside someones tribe zone.