Any interest paid was agreed upon mutually by ERBB management and the stake holders. Do you see something bad in that?
Also---all this talk about dilution and too many shares---companies in their early years have no choice but to sell shares in order to raise the capital with which to operate. The ability to attract buyers is often faith in leadership and little else. Not every business out there is developing a guaranteed success in the form of a golden egg. Good business models must be put together piece by piece, block by block and a few prayers along the way, too, if that works for you.
Most companies publicly traded would not exist were it not for the occasional "offering." People run from the "dilution" word but it's silly for it is usually the only way to maintain "going concern" status. The alternative is six feet under in the land of bankruptcy. I'll take "going concern" any day. Dilution, too.
My opinions above and nothing more than those;.