Because when you merge to master you want to know which merge you are looking at without having to drill in to the flow and inspecting the commit hash
We completely agree, thank you for sharing. As we overhaul our new UI, helping you get to your desired branch/workflow/job/step-output FASTER is very important to us. We've been waiting to add commit message to the Pipelines page until our new Pipelines API accommodates us being able to do so, but it is on the roadmap.
Thanks and keep the feedback coming!
Product Manager, Developer Experience
Update: This is now shipped in the new UI! Thanks again for reporting.
Related, additional request: Make this commit message a link to Github's commit view -> https://ideas.circleci.com/ideas/CCI-I-1385
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