So with the February Monthly Achievement; we need to salvage 500 items. This comes out to roughly 18 per day (assuming you play every day this month); but for the sake of argument lets say I want to salvage 25 items per day.
What areas have mobs that will drop salvageable items at an acceptable rate?
Ideally; I'd think you'd want enemies that would typically drop armor/weapons. Ones that drop rare crafting materials (while helpful) seems to be less important. Also; it seems like you'd want to avoid enemies that drop bags (as you get no salvage points for them).
My assumption is that I'd want to run dungeons a bunch of times (3 fractals seem to fill up a good chunk of my inventory) as well as areas with lots of humanoid enemies (pirate/bandit camps)
Another viable strategy seems to be spinning up a new alt and ranking up my crafting skill and then salvaging the created items. (Currently my main is an ele with Tailor/Artificer; so fire up a ranger with Leatherworking/Huntsman)