I bought a tiny bit more, since these prices reflect severe pessimism.  If they can survive these down times (the geopolitics are rather bad right now) and avoid bankruptcy, then I think the future will reward even the much higher prices that most of us bought in at.   They key is to understand what patented tech they own, and whether the demand for it will eventually be there.  
That's anybody's guess.  If I needed to get ready for a world gone mad, (war, supply chain collapse, etc) and the only way to do that was to sell my stock, I would unhesitatingly sell to do it, but I don't, and so I've held and added a tiny bit.   Most of us here thought pay day would arrive long before this, so the disappointment is keen and colors our thinking a bit.  I definitely think Poet is worth buying at these prices.