Our software scales images twice: once up on the upload to optimize the file size, and the other within the HTML to guess the type of screen the person is using. The first scaling makes your image 620 pixels wide, which is ideal for people on 1000ish desktop displays seeing the right column and 640x on phones like the iPhone plus.
To remove scaling up from 620px in the HTML, just remove your images from paragraphs. Make them stand alone. Here are two examples:
I'm an image outside of a paragraph!
I'm an image inside a paragraph!
Use the <> code button on the far left to wipe out paragraph tags as needed.
Why we do this: before we used to make a second copy of everything for tiny low-res screens 320x or smaller, and it looks like in 2 years you won't be able to buy a phone that doesn't support 1080p. We're future proofing the community blogs, sorry for the bumpy ride along the way this month but we're getting there!