Using MS paint on high res pics will cause major compression issues...
Stating that it causes "major compression issues" is well, a major overstatement.
Yes, it will generate artifacts but, in Windows 7 MSPaint employs an effective smoothing filter pass which reduces the artifact contrast by blending them.
For posting in forums, the quality difference is very negligible. If you are so concerned about the absolute quality, upload in PNG. For a very small tradeoff in filesize, you will always get a sharper image. With JPG quality settings at High, even Photoshop generates artifacts compared to saving in PNG format.
Because I simply cannot tolerate being called a liar
Here is my rebuttal;
I took a 1920x1080 screengrab from NanoFX. I opened it in Photoshop and saved it to 2 filetypes; PNG and JPG (Maximum Image Quality).
I then took the JPG I just created and opened it in MSPaint and resaved it as a new JPG.
Then I created this image by increasing each original image by 400% and placing them side-by-side; (Please point out the "major compression issues" and/or artifacts)
Then, I uploaded it to Photobucket. I then redownloaded it from Photobucket to compare it for adverse compression caused by Photobucket, and found none. The filesize was exact as well.
Please be respectful of other peoples
opinions. I was not stating my method as a fact, simply an alternative.