Even though the default base controllers provided by VRC are written with WD off, the VRCSDK should not warn when controllers are using WD on.
  1. Most users don't understand the consequences of changing between the two, and should use whatever controllers were provided by the creator of the avatar base they are uploading. Seeing the additional warning is confusing and can lead the user to breaking their perfectly functional avatar.
  2. WD off actually leads to more obscure issues than WD on. We've documented all of the currently known WD-related bugs in https://vrcfury.com/technical/wd/ , but the requirement to use masks on all fx layers when the gesture controller contains any transform animations is really a killer, and impossible to solve in many cases (due to the unrelated unity masking bugs).
Please consider removing this warning. Thanks.