The negative crowd have been struggling to present the Joker movie in a negative light. It's had a pretty good critical response and even more importantly has been a huge hit with audiences around the world. It's been very difficult for certain members to frame the movie in a way that presents it as a complete failure somehow. The usual 'Well, it's a DC movie so it probably needed to gross three billion just to break even' argument just wouldn't wash with this one. Neither did the 'Well, it's a critical failure as far as I'm concerned...'.
Well, now they've maybe got a reason. It turns out that WB had little faith in the movies profitability and ended up co-financing the project with investors, which is now costing them a big chunk of the huge profits earned. That's it. Case closed. Joker's a flop! Why do they bother with these DC films? REEEEEEEEEEEE.