Russell Wintner on "[Theme: WP Knowledge Base] How to change some (minor?) defaults"

.........continue:
put this code to your Child Theme style.css file
OR
Install Simple Custom CSS plugin and put the code there.
I’m doing this on my browser to find solution.
It can get to some different behavior on your site.
It can happen that it is not working.
Then we have to look further.

Can I get rid of these things? And, if I do, will they come back when I do a future update of the theme or will they persist through any updates? YES YOU CAN, IF YOU PUT IT TO THE CHILD THEME style.css or that plugin above, you will not loose any tweaking.

get rid of the thumbs up button:

.btn-success { display: none;
}

or

.btn-success { display: none!important;
}

get rid of the block about the author
Im not 100% sure what you mean
here is what I think: Posted on February 8, 2016 by rwintner

.entry-meta.text-muted { display: none;
}

or

.entry-meta.text-muted { display: none!important;
}

Take a look at the Category Concession. It shows 1 article on the static default page. But you open it and can see that there are in fact 3.

I see No. 4 and when I open it there are 4 articles

Try to clear Browser Cache, sometime it is stubbo browser Caching

I hope that it is working as you wanted.
Let me know
Cheers
TR

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