I have just edited this question, because apart from some spelling mistakes the asker had colored a good portion of the text (not the equations!), almost as if they wanted to convey what they felt were the important bits, or even the intonation of the text (why in the world would one highlight a "but"?).
As some had pointed out in the comments there, this practice made the question (a valid question, otherwise) very difficult to read and understand. Now the asker is requesting that I revert the question to its older likes, but I couldn't find relevant meta post to link to them.
Should this use of color be discouraged?