(plus even more stuff mods which do not live on CDB or have died with MT 0.4.x, such as galvorn & mithril in LOTT; besides, has anyone ever considered a more specific name like "equipment" rather than the insanely generic "stuff"?)
This is boring. It already was boring in Minetest Game - the tools don't differ except in their stats. Generally, the better the tier, the better the stats. "Stuff" mods just add yet another boring & redundant tier. The only notable exception here is LandarVargan's Lava Stuff, which has special effects (e.g. the lava pickaxe already "cooks" everything you dig with it like the MTG furnace).
Quoting my review of the last stuff mod: