Improved Tagging – Stack Exchange
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I personally think the ui is kind of intimidating, and will drive people off tagging because of the suggestion that you should actually do all of the "work" of reading those descriptions.
My suggestion would be to only show one of these descriptions at a time as a sub-element of the first suggestion displayed in the old-style list (with other suggestions displayed as well, but without the description). This would make the description plainly obvious to a new user, but without the information overload presented in the current tag suggestions.
A lot of people will tag something with "android" and "canvas" when they are looking for help with the Java Android Canvas. I have to retag these to "android" and "android-canvas" because the Java Android Canvas has its own tag and the questions related to it are very different than the questions related to Android using HTML5 Canvas.
To help people a little while ago, I wrote excerpt for the "canvas" tag as Canvas is a commonly named object used for drawing or as a layout container. This tag is for HTML5 Canvas. Use "android-canvas" for Android and "wpf-controls" for WPF.
Of course nobody ever saw that until after they posted their question, if they saw it at all! But now they are much more likely to see it.
So I welcome this, though I think there is probably a slightly nicer way to do it out there.
If you've ever made a post on meta, this would have been made obvious since the tag input box comes prepopulated with a list of these, and the submission fails if you don't use one. If you don't post on meta, however, these tags are meaningless to you.
scared the hell out of me.
for now I'm thinking it's not necessary at all. just matching synonyms would suffice. don't have to show them on screen like that.