Conversation so far:
what was Slipknot (band)'s image?
attention-grabbing image; the members perform wearing unique, individual facemasks and matching uniforms--typically jumpsuits.
what other things played a part in their image?
The concept of wearing matching jumpsuits has been described as a response to commercialism in the music industry and led to the idea of assigning the band members numerical aliases.
What else were they known for?
Several band members have said wearing the masks helps to maintain privacy in their personal lives.

Question: Were they successful?
Self-contained rewrite: Were Slipknot (band) members successful?