by Mac Jaehnert (@macjaeh)

Last week, Twitter CEO Dick Costolo resigned his post at the helm of one of the world's most talked-about companies. Analysts and investors have long aired concerns of Twitter's lagging user growth numbers, and the need for greater accessibility for new users. But for as long as it has bothered investors, Twitter's often strange and unapproachable nature added a strangely welcoming air of exclusivity among tech and media savvy early adopters.

But the very quirks that make Twitter a unique communication experience are what some say makes the new user experience bewildering at first. Adding fuel to the fire, a 2014 report showed that 44% of Twitter accounts had never sent a single tweet.  As a result of this pressure, Twitter has tried many tactics to make their platform more approachable:

  • Late last year, Twitter began surfacing content not just from the people you follow, but also from the people they feel you might find interesting.
  • Twitter unveiled full-width cover photos for page profiles, and an overall design that looks much more like your average Facebook page.
  • Twitter added in-line Fav, Reply, and Retweet buttons to each post, similar to Facebook's Like, Comment, and Share interface.
  • Photos and link summaries began displaying in-feed.

It seems Twitter is between a rock and a hard place, and while I really admire Costolo (and who wouldn't - listen to him talk about his improv comedy days with Steve Carrell at Second City in this brilliant Times interview with the great Farhad Manjoo), it seems they'll have to figure out their next move without him.

For what it's worth, at least he took time out of his day to respond to your everyday ordinary tweeter:

Twitter co-founder Jack Dorsey (@jack) takes over on July 1.