While billionaire Elon Musk’s Twitter feed has been under scrutiny like never before, his prolific and controversial tweets are drawing praise from the social media platform’s co-founder.

Twitter Inc. chief executive officer Jack Dorsey, who has previously said Musk is one of his favourite users, says he likes what the CEO of both Tesla Inc. and SpaceX does on the social platform.

“I appreciate Elon’s use because he tests the edges. I think that’s always important to do,” Dorsey said in an exclusive interview with BNN Bloomberg’s Jon Erlichman.

“If we don’t figure out ways to support that, we don’t have inventions like Tesla, and we don’t have inventions like what SpaceX is doing.”

Musk has come under fire on numerous occasions for his tweets. He recently found himself in hot water last year after tweeting about taking Tesla private, which resulted in US$40 million in fines, the appointment of independent directors and losing his chairman role at the company. Last year on April Fools’ Day, Musk also sent a series of posts joking that Tesla had gone bankrupt.

Some analysts and investors haven’t found Musk’s Twitter antics so funny, however, suggesting that the CEO should rein in his social media habit.

Still, Dorsey said Musk’s candid tweets can be an inspiration to others. 

“I think it is important he exists and that he shows himself so authentically on the service and is so playful with it,” Dorsey said.

“It inspires others to just think very, very differently about their work and what they’re doing. And you never know where creativity is going to strike and he’s probably inspired a bunch.”