Minimalstic addon that let's you abandon all quests at once with the click of a button.
A new button "Abandon all quests" is added below the quest log. Clicking the button pops up a dialog asking if you really want to abandon all quests. Clicking "Yes" actually abandons all quests and removes them from your quest log which leaves you with an empty quest log. See screenshots for UI flow.
This functionality is especially useful when maxing out an alt, e.g. in Chromie time and wanting to quickly abandon all quests before jumping into current content. It can also be useful for cleaning up unmaintained alts before starting a new leveling session.