LW users shirking sharing etc

[caseybob]

Hello: Would like to encourage SHARING by LW users, but find that very few (about 1 in 20) enable 'chat' in their configuration. Its the only way I know to see what music people uploading from me have available for me to share (there may be another way-if so, somebody let me know). It is the height of selfishness not to enable chat! In the hundreds of hours I have been on for share, only once did I see LW management delete a 'freeloader'...am configured to share only with users who have shared 40 files.
Does LimeWire monitor up/down loaders 24/7, or is it just sporadic? Sidebar question; what is 'uploading hash tree' all about?
"Sharing is a MUST in life"
Best to all, caseybob