My understanding is that her article is advocating for respectful and open discourse, and greater detail and understanding of the issues is always welcome. The point I see is that a person can be offended by a post or statement, out of context of the post's intent. Currently, the discourse supports the offended person, and condemns the poster. For example, in the gentrification example, the retweet was focused on communicating relative wealth of the communities, it was not focused on the political issue of gentrification. The author was not saying she agreed with gentrification, and was expressing any opinions about race, rather, she was trying to communicate the relative wealth of the different communities. This backlash to her retweet drove her to release an apology.
There are more discussions about income inequality, capitalism in the housing market, unfair housing practices, etc, that the author wasn't trying to comment on when she was broadcasting information.
Imo, the challenge is that it may be assumed that you have bad intent. And also imo, I don't expect this challenge to go away, or be "fixed" (if it is a problem at all). The power to have your words be broadcast to millions in an instant is also the challenge of having millions of reactions to your words.
Gentrification is an incredibly political third rail. Either she's dumb, oblivious or she knew what she was saying. In the latter two cases she can't claim to be upset at the outcry.
Your claim has crossed the line to a personal attack which should not be tolerated.
Please stick to discussing the issues instead of making personal attacks in the future.
To be more clear, she's a millennial Republican.
She was born at a time where these social liberal points she tries to claim as her beliefs deserving acclaim were already long resolved in the mainstream and she seems to have no interest in working for further social justice beyond what was already fought and won before she became politically aware.
For the apparent contradictions she highlights and questions she asks there are of course reasonable answers, but she doesn't seem to have the curiosity to dig into the issues behind what the posters on twitter are referencing. Instead simply being distraught at the discourse that she doesn't understand.