Hi and Welcome !
Don't worry.
Remember that you are participating in the Gnutella Network...
Limewire is only one of numerous 'clients' that you can use to access other users of the Gnutella Network...
Many of the clients do very silly things re: 'rating' or 'recognition' of the other clients. Silly, but nothing to cause you problems.
The same goes for the display of INFO, such as the bitrate and run time of an .mp3 file... Just because it isn't displayed means nothing negative.
Also, these are the Gnutella Forums... NOT the Limewire Forums... Limewire, again, is one of many other clients here.
Saying that, you will note that there are clients that use Gnutella Forums as their only forum access for their users.
And, if you really want to try to avoid bad files, be certain to always check the file with Bitzi...
BEFORE you download !