Browsing uploaders is much more difficult than those in search results or those in download window. At least that's the case for LW 4. And a much better chance of browsing uploaders 'if' they have the chat icon showing; the yellow smiley icon. It's difficult browsing LW 5 users, but once in a while I succeed (whilst using LW 4.)

LW 5.2.1 beta has supposedly brought back in browsing hosts for upload & download windows but I haven't checked yet this on OSX where I share most of my files.