it also depends on where you live
some countries are more dangerous than others.
but for real: you're the one that pays your bills,
better not to brag about big gains and live in a discrete way, definitely.
Well if you store your bitcoin in a safe way then nothing will happen, doesn't happen how bad it is. This is because of the fact that if you store it on the hardware wallet, you have to remember that it can be impossible to confiscate it. In turn, it is impossible to steal it. Also, it is even kind of good to talk about big gains in bitcoin because this can attract new people to the space and make even more riches.
so what if you store your coins on a hardware wallet ? as soon as you brag before , criminals already keep an eye on you and will attack once you are alone . they will still forced you or torture you to give access to your hardware wallet . you would want to waste your life just because of btc arent you ? so your likely to lend them the password or your private keys . you can encourage other people to join bitcoin but you should not brag your wealth but you can just say the good effects of btc , in that way no one will become attracted to hold up you .