Feature Request: Allow regular expressions in Country field of Search Filters

[redactedscribe]

Describe the solution you'd like

I'd like regex to be allowed not only in the Include and Exclude fields, but also the country field. This would let you set default Country filter values (via preferences) to those that you only wish to see results from, e.g. C1|C2|C3. If implemented, the related preferences option should be edited to mention this.

The Geo Block list of blocked countries would still override your filter, as it should, but having a means to filter only results from countries you wish to see is more convenient than writing a long list of countries to Geo Block (if you only wish to trust a couple countries). The benefit of Geo Block (I think) is that results will not be returned in the first place if they match any on its list (making it the more private of the two), whereas the Country filter would just hide any users from the filtered countries, but still return results, i.e. still make some form of connection.

An alternative is to make Geo Blocking more convenient, e.g. toggle between "Block all except:" and "Allow all except:".