I fail to see any reason to have tag countries.
Is everyone fine with deleting it?
I respectfully disagree. In the bitcoin realm especially, setting and origin can paint the Topic at hand equal shades of subversive, truly disruptive or positively purposeless grey. No one cares about a BTM in Venezuela because they are a little tied up by their shoe strings on cold concrete wrap in mats.
Take for example a question posted from an Argentinian inquiring about arbitraging the Blue Note V. Official Note Market, then finally converting into or out of BTC. This is a geographically isolated opportunity and with it comes regionally specific regulation and licensing considerations to say the very minimum. I see weight set upon the scale in instances such as these.
Similarly, a poster inquiring about the particular confidence in BTCx leveraging platforms that are central to Shang Hai, or Singapore for instance, again carries with it a distinct geographical flavor.