If you are looking for a place to ask questions and discuss Oracle ADF development, you should join my ADF Forum on Slack.com. This is a closed, members-only forum, and I personally moderate the posts here to keep the signal-to-noise ratio high. I also answer questions and regularly post ADF news and links as well as little tips and tricks to be more productive as an ADF developer.
Many of my training offerings include a free one-year membership of the forum, and the accelerated ADF training include a lifetime membership. You will receive an invitation when we start working together on one of these programs.
If you have not worked with me yet, you can join the forum for $399 per year or $799 for life. Send me an e-mail to hear more or if you want to join.