Tags are working u can see it on my site how it will be looks like
for tags u need the module Channels [ https://una.io/page/view-product?id=143 ] its free to use
People can set hashtags in all places were u have a editor on site. I love this module really.
At my first time i was confused, UNA call it channels, but they are Hashtags with own profiles, but u can make own translation and call it Hashtags or tags.
Hashtags under profile, it is the own profile discription box
Followed Hashtags / Channels in timeline:
Popular Hashtags insert as Trends:
Hashtag / Channel profile with there own content: