It still works for me, it just takes ages to load a lot of things. I'm guessing the API token is still active, just throttled? Hopefully we're not causing the developer to see a huge bill at the end of the month, but if the app was made under an LLC then it's probably not getting paid anyways.

Either way I'm just happy Lemmy in general is getting more and more solid, and growing the user base. I personally prefer the BaconReader app which doesn't seem to have plans to migrate or to open-source, but Boost is still pretty solid with all it's customization options. I only started using Boost once BR stopped working, but I could see myself switching. (FWIW, I'm posting from Connect, which also seems pretty good except for a few minor tweaks I'd like to see.)

If they saw the writing on the wall they could open-source before they went into bankruptcy. However, that could open them up to lawsuits if it was deemed they were "destroying" their assets before they could be claimed by investors and/or creditors, but that's a big legal gray area depending on what you can show in court. And venture capitalists have better lawyers than bankrupt companies typically do.