Keep in mind that if you have an outdated limewire client, you could make it harder for you and other people... (i.e) You might need a file you don't have and have problems downloading the file, and you might want to contact the other person who does have it, by using the 'Chat with Host' feature. Also vice-versa, the person might need a file that they want from you....

I think this should be mentioned somewhere when Limewire starts up asking you for the updated version of the client.