Bugbears: Not being able to look at the list of tags and choose them, but having to start typing. Which means I need to remember whether I tag my book revues as books or reading.

Reading through entries to a comm and clicking on the 'read more' to find you're on another page rather than just expanding.

Hitting the enter button having chosen a tag to find I've posted my entry - that was particularly annoying when I was cross-posting to LJ, as I then had to amend both entries with further tags.

Once an entry is posted coming to a screen which says 'entry posted' rather than showing the entry, which I like because at times I spot the obvious mistake.

Not currently being able to schedule posts. The latter particularly for comm entries where I normally prepare something the evening before and want it to go live in the morning.

Because I like to receive email notifications of entries, so I track journals/comms they also go into my inbox. Similarly replies to my entries arrive to my email showing the full entry, even if I've used a cut.

They are mostly just niggles, but for me it makes the system less user friendly.