There’s a corner of the Twitter universe that has become a “digital hangout” for investors. Affectionately known as FinTwit, this is a platform where investment professionals, hedge fund owners, billionaires, and even retail investors express their thoughts on investing. I’ve become an avid follower of many of these FinTwit accounts and have learnt so much from them. In fact, I consider FinTwit a great avenue to learn from investors from all walks of life. Bad habits That said, there are some well-followed FinTwit accounts that have developed bad habits. One of these bad habits is to sing about short-term gains on stocks. For the momentum trader, this may be a justifiable indicator that they have made the right trades. But for the long-term investor (which is a strategy that most of these FinTwit accounts I follow prescribe to), short-term stock price fluctuations mean little. Boasting about steep share price increases, without any meaningful change in the business...