so I think it's just not a reliable mining option right now (at least as far as I can tell, I tried a couple other pools as well and no love). *shrug*
EDIT TO ADD: my link to suprnova's electroneum pool seems to go nowhere now. Hmm...
It was pretty stable for the most part, only the beginning was rough. But right now most pools are having issues again. I didn't even know that suprnova has an ETN pool, just switched my miners to it, let's see whether it's any good. The front-end is sluggish, but at least it's accepting my shares (both electroneum.space and hashparty aren't working for me at all right now).