Just so people understand properly

POET isn't totally debt-free.

The debentures holders are still being paid interest and as long as the debentures aren't either recalled/converted/expired than POET still have that debt.

The difference is that debenture holders aren't given any form of security over any assets of POET vs the loan from Espresso Capital. POET's assets are now unemcumbered (no lien).

POET can't use DL services free of charge.

Please re-read what have been disclosed. There are certain development project that will be continued as DL and free-of-charge but ownership will be jointly-owned. Other than that, POET will  have to pay DL for their work.

On a side note! I really hope that they are able to lift at least a little portion of the curtain at the next CC.