I hope they fix this.  For stills, yes, you can save as a TIFF or some such thing.  But what about animation?  I usually render as a series of still images, so if Poser crashes, I can continue where I left off.  I usually use a quality of 70-80, and adjust the filesize in my animation app.  Rendering to TIFF would take a lot longer, then I'd have to convert to JPG, since my animation program doesn't do TIFF.