Another reason to brag is to quickly establish credibility/confidence in noisy markets. You want to quickly establish yourself as a peer or credible individual

Another reason to brag is to quickly establish credibility/confidence in noisy markets. You want to quickly establish yourself as a peer or credible individual so that you can get down to business without wasting time feeling each other out. If you’re a VC it’s much better to get an email with team credentials. Similarly if you’re a VC that wants to get into a deal you might say who you invested in and who you coinvest with.