steemit 4.51%
gatehub 0.47%
steamit 0.44%
steem 0.30%
etc vs eth 0.29%
These tags can also be used inside of Steem and work very well. Thousands of articles are posted every minute and chances that a new account with few followers will make a big hit are so minimal
Tagging helps posts to get to the right category and that helps with visibility and ultimately upvotes.