Shareknight 

A shareknight is someone who shares pictures on facebook or other social media drawing attention to whatever tragedy is in the news at the time, supposedly because they care, but mostly because they want people to know they care.

"Did you see that picture about tragedy x that John shared last night."
"Yeah, that dude is such a shareknight. I wish he'd stop wasting my precious bandwidth."
"When did sharing that stuff accomplish anything anyway?"

Shareknight by Kaasbaviaan April 16, 2013

Shiteknight 

A shiteknight is a person with low self-esteem who combats this with an unwavering need to aid others in maintaining the delusion that they were born in the wrong body. They usually have very isolated personal lives as they are very judgmental of others, surrounding themselves only with those who feed their need to center men in gender-critical activism. Most commonly sighted in older men in regards to transgender identifying males.

Chronic shiteknighting often occurs in correlation with chronic self-esteem problems where the person needs to maintain a high view of themselves through self-righteous acts of pseudo-kindness. These people surround themselves with men and women still suffering from unresolved delusions of gender as a means to harvest praise and adulation for speaking over and denigrating women who question their tactics.

Shiteknighting is also associated with metastasized misogyny, homophobia, racism, and ableism as a shield against cognitive dissonance induced by requests from peers to examine one's behavior for bias.

"When women say Hayton is no ally of theirs because of his continued engagement in his autogynephilia fetish in women's spaces, Graham Linehan shiteknights for him."

Shiteknight by Amy Denver January 22, 2022