Reactionist 

A self-proclaimed artist who has nothing original to offer and only reacts, negatively or hyper-negatively, to other forms of art, events in society and politics. A critic ashamed of admitting his/her true job description. A resentful twat who marks every new thing as either "been-there-done-that" or something of the form "kids-these-days...". A reactionary, but only limited to political context.

Abby: Have you seen Dave's comments on Rachel's troll-faced concert pics!! Burn!!
Daisy: Which Dave? The guy who blogs about every other thing???
Abby: Who else??!! He's the first to respond in any case!
Daisy: I know!! He's such a reactionist.

Reactionist by abwolverine August 28, 2015

Reactionist 

A dumb term used by these guys. Reactionist are not to be confused with reactors for they are original. Reactionist are not original. In fact they're terrible.

Why are they terrible? Well here's what they do: they watch a video and they react to it. You may be saying to yourself "Well that doesn't sound too bad." Well here's the thing: they aren't even creative about it. No editing, no jokes, nothing. They play the video and its entirety and give the occasional "oh shit" or "dayum" while rambling on at the end.

You may be saying, "Well ok, that sounds bad, but it's not like their hurting anybody right?" Well here's the thing: THEY ARE.

Let's say a YouTuber made an animation and he/she uploaded it to YouTube. He/she worked really hard on it and they could really use the views for money. A reactionist uploads a reaction to it. Now an average viewer could stumble across the video but instead of watching the animator's version, the viewer watches the reactionist's video. The viewer doesn't watch the animator's version because he/she already watched the reactionist's version. The reactionist gets the money when it should be going to the animator's.

Again, there's a difference between a reactor and a reactionist. A reactor doesn't show the whole video.

Also don't believe it's helping a channel who wants advice. It's called a review.

In the end, reactionists are terrible people whose channels should be taken down. They're shitty videos for twats.

I uploaded a video but a reactionist got all the money.

Sucks.

Reactionist by Gluff September 10, 2016

Reactionist 

A cuntmuffin who copies a video in its entirety and pastes it in the corner of the video for people to watch.
These types of morons not only steal other people's content, they basically just sit there throughout the entire video staring at their screen and barely saying anything.

Jinx is such a cuntmuffin. He copied a video of a cat dancing, paste it in the corner of the video and does nothing but say 'oh dayummm' every 2 minutes. He is such a reactionist

Reactionist by Your mom abc September 4, 2016

Reactionist 

A person who does something just to see and get a reaction out of someone.

My girlfriend flirted with another guy just to see my reaction. She is so the reactionist!

Reactionist by helimc November 21, 2010

Reactionist 

The YouTuber that for their whol channel: react to videos

Person1: Guess what I just started a YouTube channel!
Person 2: What kind of YouTuber are you gonna be?
Person 1: I’m gonna be a reactionist!

Reactionist by BarBar jinks June 16, 2018

reactivist 

A person who immediately supports either physically, vocally, or interactively a cause or movement on the merit of how they feel about an issue or incident before all the facts surrounding the galvanizing issue or incident are completely known.

He was enraged at the apparent lack of concern for the feelings of those offended and immediately joined other reactivists on social media posting to get the offending party censured.

reactivist by Gramaticus January 15, 2016

reductionisticism 

Bringing back something or someone to one (often irrelevant) detail, with unclear intentions

Ristar was quite tired of ovand's reductionisticism

reductionisticism by ovand May 8, 2014