Probably they are very busy developing KA right now and they still look the forums but rarely reply or respond when we mention issues about the game that don´t are bugs (balance, questions about game mechanics "many still remain unknown", pvp, etc.) These are the forums that dev usually pay more attention or at least respond more based on my observation.
1 Bugs and known issues (high attention)
2 HC (average attention)
3 General discussion (low attention)
4 Suggestions (very low attention)
5 Others basically dead forums (basically ignored)