To add a bit of personal context -- Mikhail wrote about using WriteLaTeX on his personal blog in 2013, in a post which ended up at the top of HN!

The post was caught by the wayback machine snapshotting his main blog page: https://web.archive.org/web/20130930021027/http://www.theuns...

It's the one entitled "Tracking progress and learning from top performers".

Because of that post, Mikhail and I chatted, and he wrote a guest blog post for us. We stayed in touch, and seeing as it's our tenth anniversary this year (both of Overleaf and that blog post), we wrote this follow up.

Time flies...doesn't feel like ten years ago!