So, I'm changing the category Back to the source%, since it used to end earlier than it should (Giant loster is not the final boss, Principal Lich is). Due to the category being created wrongly, I will have to reject previous runs that ended on Giant Loster (sorry Lug0, your run was good but yeah). Also, should we end a run after defeating a boss, even if there are some missions after the boss battle (like in Unpronouncable Horror, that there is one main mission that is just clicking the "!", and Here be dragons, that is travelling to two places and them seing some converstion)

No problem. I also found it weird to end there but did not really question the logic behind the ruleset. Maybe this will motivate me to do some new runs :D

Regarding the question. Part of me wants to say "the last quest is where the campaign ends" but another screams that just mashing through another couple lines of dialog is boring way to end a run. So I don't really know. Sorry for being no help at all.