There's plenty of websites where you can interact with devs.
But there's only one website full of unfiltered ranting about topics nobody cares about, and the occasional good discussion of RPGs.
Any dev who sticks around here has my respect, if for nothing more than being
stupid thick-skinned enough to associate with the codex.
After all, as DU's signature proudly states:
"We're a bunch of angry cunts."
No doubt that some developers leave because they are bothered by posts intended to bother them. But after seeing the cycle repeat itself multiple times, I believe that it is just as likely that developers leave because they are bored and not getting much useful feedback.
By "the cycle" I mean this:
Developer posts "Hey, I'm the developer of X..."
The initial replies are a mix of welcomes and warnings.
Then there is a contest to see who can be the edgiest edgelord at the developer's expense.
This is followed by dozens of posts arguing the merits of this performance, how oh so edgy RPG Codex is in general, the history of trolling developers on the Codex, etc. Mixed in is maybe 5% posts about the game, an ever decreasing subset of which might qualify as useful feedback.
So while I'm sure that some people are driven off by the insults, I submit that it may be possible that some of these developers simply don't find the self referential Codex bullshit to be all that entertaining and that they don't find sifting through this stuff to find the occasional nugget of feedback to be worth their time. They also may realize that the thread about their game contained much less of this bullshit before they showed up, that their presence has undeniably diminished the discussion about their game and that they'd be way better off simply reading the thread without logging in.