In the more recent years and in my environment it was first mostly MSN and later more and more Skype. Suddenly it switched to a lot of Facebook and later mostly

In the more recent years and in my environment it was first mostly MSN and later more and more Skype. Suddenly it switched to a lot of Facebook and later mostly Whatsapp. None of these is bot friendly at all. Slack and Telegram have been a huge improvement for my daily automation needs.