UX: item's tag auto-complete not suitable for all cases
It appears only when 2 characters have been entered. In Chinese, the tags may be short, with only a few characters. In English, users may also use ultra-short tag, although it can be easily input.
Perhaps it should provide some control (tags cloud) to display and select the most commonly used (in this collect, this item type or all items).
Perhaps it should provide some control (tags cloud) to display and select the most commonly used (in this collect, this item type or all items).
Allow to fuzzy matching (not beginning) and selection interface may be better, in my ideas.