Ghidra is a software reverse engineering (SRE) framework
Ghidra was built by the NSA to "solve scaling and teaming problems on complex SRE efforts, and to provide a customizable and extensible SRE research platform" (from their README on GitHub). r2 might be customizable and extensible as well, but it was never built to solve huge problems requiring a team of people building a common body of knowledge on a specific reverse engineering task. That "scaling" part is one of the main things holding r2 back in a lot of contexts: It's simply not a useful way to store and share knowledge about a complex RE task.
Trying to make an script to find switch case in ghidra for C/C++.
1 project | reddit.com/r/ghidra | 2 Jul 2022
Understanding processor modules and how they're made from manuals
1 project | reddit.com/r/ghidra | 30 Jun 2022
How to import .keep file as a new version?
1 project | reddit.com/r/ghidra | 22 Jun 2022
Release Ghidra 10.1.4 · NationalSecurityAgency/ghidra
1 project | reddit.com/r/ghidra | 20 May 2022
New processor for BPF bytecode by Heurs for Ghidra
1 project | reddit.com/r/blueteamsec | 18 May 2022