Index: src/org/openstreetmap/josm/plugins/DirectUpload/UploadDataGui.java
===================================================================
--- src/org/openstreetmap/josm/plugins/DirectUpload/UploadDataGui.java	(revision 17393)
+++ src/org/openstreetmap/josm/plugins/DirectUpload/UploadDataGui.java	(working copy)
@@ -101,7 +101,7 @@
         JLabel descriptionLabel = new JLabel(tr("Description"));
         descriptionField.setToolTipText(tr("Please enter Description about your trace."));
 
-        JLabel tagsLabel = new JLabel(tr("Tags"));
+        JLabel tagsLabel = new JLabel(tr("Tags (comma delimited)"));
         tagsField.setToolTipText(tr("Please enter tags about your trace."));
 
         JPanel p = new JPanel(new GridBagLayout());
@@ -167,7 +167,7 @@
 
     		// Clean description/tags from disallowed chars
     		description = description.replaceAll("[&?/\\\\]"," ");
-    		tags = tags.replaceAll("[&?/\\\\.,;]"," ");
+    		tags = tags.replaceAll("[&?/\\\\.;]"," ");
 
     		// Set progress dialog to indeterminate while connecting
     		progressMonitor.indeterminateSubTask(tr("Connecting..."));