# Why are coloured parts of questions removed?

Out of curiosity, after I learnt the use of MathJax if I thought it necessary (obviously may be not for others), I used the colour code to mark any point of my question, but some users suggest edits or reputed users usually remove it by editing it!

Why does this happen? Is it a regulation? Or is it mandatory to not do such things for asking a good question?

• Red screams “Look at me!” Why did you feel that “YouTube” needed to be in red? In a title? In my opinion, you should be glad that a moderator removed it because your question might have gotten some downvotes for the gratuitous use of color to draw attention. – G. Smith Dec 7 '20 at 7:15
• @G.smith Ahh! Good point, May be it's a reason. – David Dec 7 '20 at 7:17

The purpose of MathJax is to make mathematical formulas easier to read, not to emphasize text parts of your posts. Use italic and bold formatting for that.

A similar question was asked on Chemistry Meta and I did an experiment with a screen reader. The 'nicely formatted text'

So, in the heap of my data it looked like

$$\text{Diamond in a coal mine}$$

But the diamond was edited to:
Diamond in a coal mine

led to the following being read heard by a visually impaired user who wants to read it:

So, in the heap of my data it looked like
Diamond in a coal mine
Diamond in a coal mine text
Diamond in a coal mine

But the diamond was edited to:
Diamond in a coal mine

That single 'nicely formatted' sentence would be heard three times (with a random word 'text' in between). I guess it's even worse if you put color into the equation.

• and, frankly, using colour in text is even less fair for the visually impaired than the usage of text already is. Plus, we don't have colour-braille – Jim Dec 9 '20 at 13:23