Feature proposal: Turn categories into filterable hashtags instead, to make them useful

[marek-lach]

Right now, the concept of 'Category' when creating a community has very little practical use.

However, if Categories were instead actual #Hashtags, then they could be useful as an option to quickly filter between themes.

As an example:

Having a community like Kant, or Schopenhauer, could have a category of #Philosophy, clicking on which would filter out all Philosophy communities.

Or a community with the category #Geography could filter out (sort) communities like /c/Canada, /c/Spain if this category is what is assigned to these communities.

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[MrLuxuri]

This is an awesome feature request, we really do need this:)

[Nutomic]

Categories have been removed, and there is #317 for tags.