It does exist, released not so long ago, along with guildes d armour and guilded mage clothes etc. You can find pictures in the Tip.it guide to clue scrolls
as you can find in the manual, you can use up to four pouches, depending on your level -_- I can use 3 pouches, which means I can take 40 ess in a run when making nats. And yes, they drop fairly often.
it's untradable, so no. Why don't you get all sizes of pouches instead of only large? They drop them fairly quick and they are easy kills, so why don't you just kill some monsters in a quiet world...
Becoming a member has nothing to do with stats. Higher stats might mean enjoying the new stuff more, but in member's it's easier to level up, look at all the lowlvl members quests! You should do it when you feel like it (or wait till you get bored with nonmember's)
You do however get your mith armour back if you've placed it on a stand; this makes it a good way to train because oak logs are the best XP/GP wise and now you van also get a bit of smithing.
Just try, it should work as it has for me. try a part of the tower you can actuallt reach, your path may be blocked by the fence EDIT - this post is irrelevent now, a mod to the rescue? ;)
It would seem so, but that's simply because you perform more actions, like alching 1k yew longs = 1k actions in little time. For example; rolling dice 1k times will get you alot more 6's then with throwing once, but the odds haven't changed