Unless this is some feature of Nependeaths I had never heard of only certain nependeaths and dark nependeaths auto aggro, along with that, only those certain (dark) nependeaths drop equips and seeds and other drops. The rest of the (dark) nependeaths only attack if you attack them and they only drop mesos. This might just be me being impatient but the dark nependeaths that dropped seeds didn't seem to respawn while the normal nependeaths were respawning instantly. This probably doesn't affect many people but I'm doing bone helm quests and it made getting the 200 nependeath seeds awkward and the 100 dark nependeath seeds also awkward and just hard because I couldn't find enough of the seed dropping dark nependeaths. Edit: found in a list of bugs sorry, here's a more detailed explanation from what I've seen though
