I'm having similar search problems. For instance, searching for tag:gtd says I (fncll) have 110 items. However, I only have 43. In the list of 110 are items like:
# Social Bookmarking Tools (I): A General Review Scholarly review of bookmarking tools: history, types, architecture, usage to linklog social delicious folksonomy ... and 1357 other people ... on 2005-04-16 and # Ship the Web to moleskine ... and 4 other people ... on 2005-10-30 neither of these are tagged gtd in any way... _______________________________________________ discuss mailing list discuss@del.icio.us http://lists.del.icio.us/cgi-bin/mailman/listinfo/discuss