What you need to understand though is that minnows are already overwhelmed by Steem information in their first month. Most come from other user friendly platforms and just try to make some money.
By the time they understand they should not comment like the examples you posted, some of them will already have been flagged to oblivion, cuz this is steemit.
I think it might get better, but there is also the non English speakers that are trying to squeeze some cents here & there too by dropping copy pasted comments over and over.
On the other hand, the people that makes it big on steemit are the one that participate actively on and out the platform, not the vote beggars.
So heh. Hope they learn before it's too late for them.
I've tried to guide some of them to do better. We need more active users. A lot of people make a bad start and trash their accounts