Member Rara Avis
The "without comments" option in the search feature isn't for printing, Lee, just for searching. In other words, it means "don't look for the search phrase in comments made by this person." It certainly doesn't mean it won't show you the comments when you go to a thread returned in the search.
The Print feature, as you've discovered, doesn't give the option to print without comments. Honestly, it never occurred to me someone would want to print from the forums, since you have so many MORE options printing your work from within a word processor.
Karilea's suggestion is a good one, I think. Click on the Printer icon, then press Ctrl-A to select all the text and Ctrl-C to copy it to your computer's buffer. Open Word or Notepad, then press Ctrl-V to paste it. Delete the comments and print as desired.
Another option would be to "Send" the poem to yourself using the icon right next to the Printer, then print it from your email program. I guess how well that would work would depend on your email program, but at least you wouldn't have to delete the comments since they won't be Sent.