Those risks you say can be managed properly, Bitcoin influencers can still influence Bitcoin and not say anything regarding their investment, when bragging or much talk on personal holdings keep being discussed, used as a preference so others can pick interest, that makes the influencer a target as the attackers will know a lot before attacking. The same way our celebrities stay out of trouble, same pattern can be followed by rarely discussing where you want to be, secondly also avoid releasing information about current location till you are out of there, just some minor tricks to stay out of trouble.
If I see someone who talk about Bitcoin and he really knows well, even he didn't mention or trying to be low profile, I will consider him to have a lot Bitcoin. Anyone could claim himself don't really understand or don't have a lot Bitcoin, but knowledge don't lie.
Even they didn't show post or share their location to anyone, there's always paparazzi who will taking their photo and let people/their friends know if they meet popular person.