A method that I have utilized on my board that ellimates people from leeching without posting is a simple hack for phpBB you can find:
HERE.
Its a hide bbcode that topic starters would put around their proxy lists and prevent folks from copying until they had posted a reply to the thread.
An additional hack that could curb people from posting meaningless replies simply to see the lists, would be
THIS hack. This modification allows you to set a minimum number of characters for replying to a topic.
Both of these should require very few edits and thus take little time out of your busy schedule. 