The more sincere you are the more it can have the opposite effect.

Sincere people can seem to be in the spectrum of desperate or suspicious (or whatever someone listen feeds it into so could be many things) ... so even if being sincere is a bit true and even cringe (or whatever) without testing or being a bit strong it's sad to have that checking-out by people.

It's like over-powering people with un-extreme sincerity !
(or maybe it's extreme for them- who knows if they don't say) !

Sincerity is a regular way to push people away... lol so weird (I blame others for not testing / going further / being a chicken)

hmm... where's that chicken emoji icon? (oh yeah it doesn't help to call people chicken either, they fly away faster!)