-If you are sure everything is fine, you can delete the old things. The
-dump of your tags you might want to keep anyway as a backup - on the
-other hand you should have some mechanism in place to make regular
-backups of your notmuch database.
+Clean-up: if you are sure everything is fine, you can delete the old
+things. The dump of your tags you might want to keep anyway as a
+backup - on the other hand you should have some mechanism in place to
+make regular backups of your notmuch database: