John & Dawg: People either spend the time on their own to figure it out, or they ignore it and move on, or they take the time to install it and see what it does. (My favorite approach much of the time.)
But it's self-evident, I think, that a short description of each program at the start of the thread would be an improvement.
Imagine you've just wandered into a new forum in an area where you aren't very familiar or a newbie and there is a thread on some free software downloads...wouldn't you appreciate it if the post announcing the SW included a short description of what the SW does?