Some people (& often the juicy gossipers) tend to become extremely holy when it comes to giving information for a shidduch. If you’re unsure whether you should divulge the flaw or not – think, ‘if this would be for me, MY son, daughter, sister, friend, etc., would I want someone to hide this piece of info. from me?’
If the aswer is a definite no then please say the truth!!