Well, 0.9 ohm, 2.0 ohm, doesn't matter when it shorts. They all go to 0 or just about when they short
I wouldn't toss the atty. I would use it on a regulated mod and maybe add a heatsink so you don't have to unscrew/screw it back on as often. Unscrew/screw back on the heat sink instead. And at least keep it for spare parts for your other one.
We did discuss our concerns with that atty wondering if that base might do this. Its too bad as its a darn nice atty otherwise for the price, and has really good flavor.
Wth?
If it jumped from .9 to .04 ( near dead short) there's a serious problem.
Please do not advise vapers to use a damaged atomizer on a regulated mod.
That's incredibly unsafe.
If you can fix it, that's one thing.
If you can't fix it do not use it.