Your post teaches people to do what we do not want them to do :)
A good tag isn't a tag which will get a post the most attention, but on that is accurate to the topic. Spamming the tags works in the short run, but will kill interest in the overused tags in the long run, including for posts which actually do belong under the abused tags...
Disagree they can focus content creation where there is demand. It shows collective interest of the group.
Agree, if misread or not read at all; it can allude towards spamming the tags. However, I see there's very good spam control culture at Steemit. So spammers are free to spam but they can't gain from it.