BUT... only do so if you really know the person and they're not a stranger or acquaintance. Only do so if you haven't already alerted them to something bothersome just like they have done to you. And finally only do so if you think somehow it will help the both of you become better friends.
In truth your opinion doesn't matter to anyone but yourself. I know this because I don't care what others think of me (it may sting but I'm not going to change if I hurt no one and am happy) and I know my opinion doesn't matter to those around me unless they want the truth from my perspective.
If it hurts no one + you're happy + they don't know you = opinion to self!