I strongly disagree with the idea of encouraging people to map to WASD this isn’t other games this is osrs
How would WASD prevent people from communicating? As others have pointed out, RuneLite allows you to do this and it doesn't impact the ability to communicate at all, if anything the fact that the chat is seemingly always active on the official client is just annoying. By that logic, it should be made impossible for people to turn off public chat as that too "discourages people from communicating". And worst case scenario, keep the current behavior as default but allow people to switch it if they want to.
Also if your not using your middle mouse button to change your camera angle you are trolling
Sure, but there are situations where I don't have a mouse f.x pseudo-afk, low intensity skilling on a laptop where WASD camera movement is simply more convenient that either a laptop touchpad or cramped half-key arrow-keys.
But frankly, I can live without the WASD, a much bigger issue is having everything bound to F-keys. For me at least it's kind of a dealbreaker and again, given that RuneLite already provides a way to re-map the F-keys, I don't see why the official client should not allow you to remap them to whatever you please. Seems like a rather arbitrary limitation.