Got an email from them this morning.
Looks like they are closing forever on March 31st.
They were one of my favorite suppliers.
Great prices, fast shipping, safe stuff.
Never had a problem with them.
I figured the least I could do was to pass on what they emailed me:
Shop Powder City before they close on March 31st
ATTENTION: Get 25% off most things with this coupon: TAKE25. 50% off clearance items.
I don’t know if you can coupon stack, but a second coupon to try would be: SWORDCANE
Here’s the news straight from them*:

Top comment here on Reddit explains why they’re probably closing