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most simple yet complicated question you will ever see on instructibles....? Answered

how do you write a reply in bold lettering and stuff


When you are writing in the text field, there's a grey box just above the field and to the right with the words rich editor.
Clicking the box will bring up an advanced interface with typical formatting option, such as underline, bold, italic, or a combination as Nacho has demonstrated.

As a non pro you will only have bold and italic available to you and me.

Idon't thinkit'spossible.