SO, TWITTER HAS ENCOUNTERED SOME TURBULENCE, and not for the first time.  The company’s quarterly earnings report sent its stock price circling downwards. But it’s even worse than that, as former users in significant numbers abandon what had once been a popular platform for quick and incisive communication in favour of more pleasing options such as Snapchat and Instagram. Michelle Fleury, BBC business reporter, suggested yesterday that Twitter execs consider how Wall Street sees them. Twitter’s inability to add significant numbers of new users has got investors thinking that the company’s best days might have passed. Twitter let go 8% of its workforce in an effort to appease investors, but unless new users come aboard quickly, Twitter, once the darling of the social media…