I can see the point of licenses on vector fonts containing nontrivial characters with many complex shapes etc., but at these small pixel sizes it seems like a bit of a fool's errand to talk about licensing/IP at all --- e.g. there's only so many ways to put pixels on a 6x13 grid and make it look recognisable as the letter 'M'. Hence all these small bitmapped fonts are extremely similar, with only slight variations in things like serifs/lack thereof, slashed zero/plain zero/rounded zero/etc. --- which are themselves a handful of pixels' difference. They all look almost like xterm6x13, which is public domain.