The Eclipse Embedded CDT project uses GitHub Discussions
In August 2021, GitHub made the new Discussions feature available for all projects (blog).
Given the ease of use and better integration, the Eclipse Embedded CDT support pages were migrated from the Tapatalk forum to GitHub Discussion.
There are separate categories for different plug-ins Q&A, general discussions, ideas, etc.
The Tapatalk forums are now deprecated and can no longer be used.