I agree with all that but.
[QUOTE=RubberDuckyBoston;6540056]It is used a ton if you're part of lots of various social groups and circles. For example I am currently a part of 3-4 whatsapp groups for various hobbies like rock climbing. I have 3-4 for separate highschool and college friendgroups. Anytime someone wants to plan an event with a bunch of people, oftentimes its done on whatsapp.
Also if you're exchanging info with someone you just met, its often easier to just ask them to scan your whatsapp profile QR code in a loud environment, than to try to trade social media and other contact info.
It is extremely common to use IMO, and therefore not necessarily a red flag.[/QUOTE]I agree with everything you said and I use it for all those casual uses but I don't use it with people that I only know from a website and especially people from SA. Whatsapp is perfect for international scammers on SA. How many women have offered their Whatsapp to you on SA and how many of them did you actually meet in person? I'm just relying on my experience on SA. Very few have offered a Whatsapps and I have met zero! If it has some wonderful utility for use on SA I'm open to learning.