Had to re-steem this post, it is so good and full of useful tricks for starters,
I don´t make any of those mistakes, but you warned me about the "competition" for attention in the big tags...
Considering how small my account is, I´m very likely to stop using the most used tags and use more specific ones.
I use 'motorcycle' tag on all my personal posts. It is a very specific tag, but a few of us are trying to establish a community here on Steemit so we use it routinely. Another use for tags...