I keep flip-flopping on this issue. Is it better to use as many tags on a question as possible, or is a minimalist approach more ideal? For a while now I've been using only harry-potter; when I was new to SFF.se I used as many tags as possible. Surely there are reasons for using five tags; perhaps using only harry-potter is detrimental in some way.
To better bolster the purpose of the site, is it more beneficial to use as many tags as possible, or to try and keep it simple and succinct with one or two tags? Why?