PS: If you're concerned about resolution and compression when uploading to this forum I've figured out these two things:
When uploading:
Use a max-width of 1826px (1074 * .85 = 912.9 * 2) and it will render crisp in the forum post. Anything over this size will apply a lot of compression (blurriness and artifacts) to the image in the post itself. Clicking on the image should show the original uncompressed version of the image.
When linking an image:
If you want a larger size then use the Image Link option, and host the image on your own website. It doesn't seem to over compress it using this option.