Here's another situation where Liberty would be preferable to Tradition.
Got the ol' Jungle Death Start; river system completely covered in jungle, with only one fresh water tile not having jungle on it. The only tiles with immediate production in my capital was a forest gems and a forest in the 2nd ring, and two hills and a deer in the third (obviously too expensive to buy out to).
Thanks to Liberty though, I had seven cities and my national college done by turn 92. Got a kind of crappy final religion even with opening Piety as my fourth policy and having gems faith (went tithe, shrine and garden happiness, preachers). Hit public schools at turn 152, got into modern at turn 164 (had to delay three turns to finish Oxford; cap had low production all game), labs at 196. The only wonder I built was Oracle, to finish Liberty and get my GE for the National College. Policies were full Liberty, 3 into Piety, 2 into Rationalism, full Aesthetics, 5 into Order.
Liberty was instrumental in getting my cities out and my production rolling, and the +25% worker speed was huge as I was in a bad spot to steal workers from AIs (got one from Washington, and a couple from Manila) and had ~20 jungle tiles to scrub off my rivers and resources.
Alex went wild with Gunboat Diplomacy, as usual, and was my main obstacle to winning early: he passed International Games at turn 200 and then subsequently Autocracy as world ideology (I went Order). Put three GMs against him, one against Persia, and then waited five more turns until I converted the Celts.
Messed up some things. Proposed World's Fair first instead of Arts Funding, and so never got the theming bonuses for my Hermitage or Oxford. Missed out on two more artifacts by forgetting about them. Let Greece get out of hand with the city states and world congress.