Creators of successful start-ups are usually all gung-ho about their sites, even after they sell up and move on.

But co-founder of social news website Reddit, Steve Huffman, was glad to no longer be involved with the site when it was used earlier this year as a distribution point for the celebrity nude photo scandal that embroiled Jennifer Lawrence, Kate Upton and Jessica Brown Findlay.

Moving on: Reddit co-founder Steve Huffman says the celebrity hacking controversy "was tough to watch." Credit:ARSINEH HOUSPIAN

"I don't think they're doing a very good job right now and that is frustrating to watch," he said. "

And he hinted at what he could have done better: "Their mobile sucks and the product hasn't changed since I left in any significant way. So it hasn't aged very well. I think the product (...) the mobile strategy could be a lot better."