~anthropic/claude-sonnet-latest → B (3:2)

Side B is a focused, well-tested bugfix (skip pinned/stickied Reddit posts) with a clean helper function and a clear regression test, with no side effects outside its scope. Side A fixes a real UI bug but sprawls into unrelated CSS/JS changes (widening columns, complex gradient logic) and silently removes the `vote_back_nav` call without explanation, risking an unintended regression.