How can I insert an inline paragraph in Trello comments like the screenshot below?
The screenshot actually shows a code block
Code block - Include formatted code by wrapping it in three backticks (```) at the beginning and end of the block, or by starting a line with four spaces. Note that the triple backticks have to be on a separate line and ensure you have a blank line before and after the code block.
Inline code - Include inline formatted code by wrapping it in a single backtick (`) at the beginning and end of the code.
You can find more on styling here: http://help.trello.com/article/821-using-markdown-in-trello
Apart from that, comments are always displayed chronologically