According to this article by Cointelegraph, On November 1, 2010, bitboy a member of this forum released a new iteration of the Bitcoin logo based on Satoshi’s design. However, this time the designer chose to replace the gold coin with the iconic orange circle and tilted the “₿” logo 14% clockwise. As a result of overwhelming support from the community, bitboy’s design stands as the official logo for Bitcoin over the last 12 years.

See bitboy's post here