This uses an image instead of a font file, and bypasses RPG Maker MV's horrible hard-coded aliasing. Essentially, it will replace your fonts with SFonts, and while it takes a bit of time to set up and create the required files, it will remove all of the blur. This is, as far as I know, the only way to remove the blurring effect.
"16. Do NOT contact other members by private message, on the forum or status feed, inviting them to put additional tools (such as leaderboards, ads, etc - whether yours or another person's) into their game."
Oh no. Necessity is the mother of invention. Do I want to know what happened?