Credit: Joe Maring / Android AuthorityTL;DRYouTube is expanding its direct messaging experiment.Previously only available in Poland and Ireland, it is now available in 31 countries.Did you know that the YouTube mobile app previously had a direct messaging (DM) feature? It was introduced in 2017, but the plug was pulled two years later. Recently, YouTube gave DMs a second shot through a limited experiment back in November. Now the company is ramping up that experiment to include more users.Don’t want to miss the best from Android Authority?