Underscores instead of dashes/hyphens in permalinks – set by default

Underscores instead of dashes/hyphens then. ??

I’m sure you can do this via a few fancy .htaccess Rewrite rules. Bit of Googling might turn something up on that front.
There’s also this plugin:
https://www.ads-software.com/extend/plugins/redirection/
…which might be worth experimenting with.

By the way, last I heard, Google prefers dashes/hyphens over underscores. So from an SEO point of view, it might not be the greatest thing to do, but I’m sure there are reasons that you do want to do this besides SEO.

Not to mention that when something is underlined (default state of a link’s text-decoration property), it’s sometimes harder to read the url when it uses underscores…

and if I would like to WP modify core files? this must be so simple, I guess only one change somewhere, isn’t it ?

cheers

also,

the same problem is with tags, if I use two word tags, the link contains dash, eg.: “foreign countries” tag would look:
https://www.website.com/tag/foreign-countries

how to make that one to appear automatically with underscore?
https://www.website.com/tag/foreign_countries