It'd be interesting to also graph this over time to see how sentiment changes from when a model is released to today.

Yes! Going forward I'm definitely doing that, once there is enough data. Might even backfill the data more into the past. I just want to stabilize the methodology before burning more tokens.

And it's probably a good idea to create a list of model release dates, so older comments can't accidentally map to models that weren't released yet.