The pound symbol # on tags can be separated from their word when they wrap around a text field in an unlucky spot
ASUNDER
In this example the word 'Computer' is supposed to be a tag: #computer
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ASUNDER
To save room you don't even need the pound symbol when displaying them on the main bookmark entries. You just need the pound symbol when searching for tags. You could colour tags instead, to easily see them as tags. Even the colour they are now is fine.