Thanks for the comments and email! I'll be responding to your email in a few minutes.
I'm going to make another course, but not sure what it's going to be over yet. I'll be asking people that completed the Twitter clone course what they are interested in, but I'm leaning towards building a full web app (user, payments, etc).
Haha I saw some people tried to do injection attacks. That's pretty great. We have you covered though :)
What do you plan next?
You can see that the app resists the basics injection attacks (i remembered that lesson when the comments started! lol).