Was on a nice crew of friendly randoms tonight and we completed a skeleton fort together with another crew, who were initially allied with us and then predictably turned on us as soon as we were ready to deliver the treasure. We fought them off but they kept coming back with a new ship - we defeated them 5 times in total while barely managing to keep our ship afloat, but by then we'd run out of supplies and they sank us on their next attempt - fuuuuuuuuuuuu. There was no appetite among the rest of the crew for another fight so we left it there
Edit: had a much better experience after that with another crew