Weeeeeeellllllll, there are a lot of former Reddit users here so you won't miss too much, I think!
Reddit's not what it once was, and won't be ever again if they continue towards IPO even if they walk back some or all of the proposed changes. I might visit occasionally to check up on things, but by-and-large I'm done with it.
What's the correlation with the IPO? Are they somehow pressurized so that IPO entry means they must get rid of third party integration and similar other feature changes?
It means their changes will be motivated to "cut waste" and squeeze every penny out of the goodwill of it's users, in order to appear profitable (despite Steve Huffman describing Reddit to the contrary).