Board Thread:Off Topic/@comment-24534644-20170213012304/@comment-25936766-20170221120237

Infusing oneself with Dust is worthless as a Semblance because it can already be done without need of a Semblance. Pretty sure it would not give you any real speed buff, at most just make you more twitchy and reactive.

Now, something like absorbing Dust's energy for a temporary buff or something, is more like a Semblance (but poor be the soul with a personality that would lead to that).