When I viewed the slide presentation, I only noticed the @mention type of tagging. But I had had a hard time going through the slides, and since your starting

When I viewed the slide presentation, I only noticed the @mention type of tagging. But I had had a hard time going through the slides, and since your starting comment seemed more in line with the folksonomic type of tagging, I was kind of hoping I had just missed that in the hurried presentation. In this day and age, I haven't seen any reasons not to support the @mention type of tagging. The folksonomic type of tagging can absolutely be overdone or restricted into absolute uselessness. But when done properly, they can be extremely useful.