Why would I pay for Pro, if Imgflip is slowly raising the limits anyway? (SPOILER: because it took 10 years)
2013: 10 seconds
2023: 20 seconds
2013: 50 frames
2023: 120 frames
I will just (jokingly) wait some more 10 years and we will (not) get 60 second GIFs with 600 frames.
Although I will say, the current dimension limit is pretty stupid. It remained the same for over 10 years.
So how about this: To commemorate Imgflip Pro's 10th anniversary, raise that limit to 480x480.