If they are like me, they may read something they like, then when they come to it later they may not remember the title of the post and it would take a lot of skimming to find it again.
I find the reliance on number of replies to be very hit and miss. there are a lot of great subjects out there and this is a simple feature that may help bring them back into the light.
You're talking about something like Reddit, right?
Or is the issue you're stuggling with the ability to know which posts you want to comment/read when you come back to the forums after a busy day at work?
If it is the latter, there is a 'Subscribe Topic' link and 'Bookmark Topic' link at the waaaaay bottom of each thread just above the very bottom of the page. It is hard to see and doesn't actually show up when you 'Reply' to a thread (where it should as well). Just click this link and your control panel will track it for you so that you can come back to it later. It is right below the 'Who is Online' portion on the foot of the page.
If you want something like the former, I feel as though with the limited number of people engaging on the forums that there will be very little differentiation between the way it is now and the way it would be with voting. The fact that voting would seem to go against the way forums usually operate is just my own personal opinion.
Early Spring - 1055:
Well, I made it to Boatmurdered, and my initial impressions can be set forth in three words: What. The. F*ck.