I miss the RSS, Atom or any other method (email) that would inform me on the new topics and posts on RapidMiner Cimunity portal. If there are such tools then please let me know how/where to find it.
RSS feed subscription is still available to the different boards by looking under the options (three dots on the upper right, see attached screenshot).
And once you post a comment, you have an option to select a checkbox under your comment that will email you whenever someone replies to that specific post.
Hopefully these features will allow you to stay current with the activity in the RapidMiner community!