Hey guys. This is the first SCP article I've written. I have a couple others sloshing around in my head but I haven't got all the details worked out yet. I'm interested to see what y'all think of this draft. I feel like it could use more detail and in general it seems a little disjointed but I'm having trouble figuring out which areas need the most focus. Please let me know anything that stands out to you at all :)
The tone is dreadful in many places (fwiw, I would have downvoted at "SCP-XXXX is, as the title states, Fear. Yes, the emotion. Literally.") and seems mostly to reflect Series 1 sensibilities. Series 1 was a long time ago, and so I encourage you to check Series 2 and 3 pages in order to get a better understanding of what is and is not currently considered acceptable tone. Likewise, the note at the end with it's "do I really have to explain this to you?" thing is thoroughly aggravating. It appears that you are just trying to tack on a bit at the end that explains why the reader should care about this object. While this can work under the right circumstances, it really, really doesn't here.
However, the real problem is that the idea doesn't work. "Fear" is such a broad and ambitious concept that, unless done absolutely perfectly, it comes across as goofy. This is not done perfectly, and I'm not sure that I know anyone who could do it perfectly. It's like having a SCP that is, literally, the phenomenon of death. The reduction of fear to a simple bacteria, if anything, makes the phenomenon less interesting, and the logs were sufficiently long that I simply skipped over most of them. Also, the fact that no one has discovered this before the Foundation is, frankly, ridiculous; if the reason that something hasn't been discovered boils down to "because the Foundation," you need to try again.
So yeah, the execution on this isn't great, and the core idea simply doesn't work. My advice would be to scrap this and take some time to read more recent articles. In a few days or weeks, try again on something newer. It can take a while to get the hang of writing SCP articles, but once you do, it can be pretty rad. Best of luck t'ye.
Seconding a lot of what Gaffney said in regards to tone: if you wouldn't write it in a formal paper, it doesn't belong in an SCP article.
Also, the core idea doesn't make sense. At all. We KNOW how fear works. It's based mainly in a brain structure called the amygdala. We have famous case studies of people who've had this structure removed and are now unable to feel fear. (Look up S. M. case study if you don't know what I'm talking about.) Maybe this is just because I'm a neuro geek, but this blatant disregard for existing science and suspension of disbelief irritates me. Yes, the Foundation has a lot of skips that don't respond to existing science. But that's the entire point of the Foundation. If this skip were real, why cover it up? Why hasn't someone else discovered it first? It just doesn't make sense as an SCP article.