Marketing professional who has mastered manipulating Reddit audiences for corporate clients.

And they're getting away with it so far?

Go to /r/all and count how many posts are his.

FYI - a good thing to do is add a /u/ as a 'friend' on reddit, and their username will stand out in an orange box if you want to spot it easily...

Wow. That is a lot of effort being put for internet points.

That person seems to moderate a lot of communities too!

It's usually not one person. Reddit accounts with very high levels of karma (upvotes gained from popular posts) are often bought an sold to companies selling products. u/gallowboob is an example of a Reddit influencer, even if a great deal of his posts are pics/gifs of animals being cute.

/u/karmanaut was the original proving ground for this. It was known that it was a used account