For S4, Devs responded some question and concerns close to the patch launch.
Also, some of those concerns comes from asking on twitter to the playerbase.
I won’t say stop using twitter for this kind of approach but there wasn’t any Dev post on the forums or Community council before posting these updates, the same question from twitter could have been a post in the forums as reminder to players and a way to get feedback from the forums too.
"what are people’s largest outstanding questions about Season 4 and how it will work? "
Besides this late post, the Slime Saber update compared to the data in game and also previous PTRs could have been communicated with time, personally i’d also put in the same miscommunication issue the 500mount achievement placeholder from alpha.
As mentioned by Kretias from CC, a lot of players assumed things based on data provided by Datamining, PTR and now even live servers.
IMO, We still need better communication and Devs should use Community council more if they want to avoid the massive playerbase on the GD forums.
EDIT: Increase the sample, if toxicity was the barrier between Devs and forum playerbase then Community council is the solution to that issue.
A few months ago, One Dev behind protoform synthesis asked about feedback on this new mount feature from 9.2, that tweet got a lot of replies with good feedback but that same question could have been asked on the CC forums by a Dev creating a new post, Devs should improve communication and use all the tools available.