If fixing technical debt after the fact costs more than 10months of operating. You have a problem. Not counting the extra hours needed to maintain an archaic codebase. This was more about the uncertainty of threads succeeding. It’s easier to swallow writing off a port than a brand new implementation.
> They could have good greenfield project and shipped in 15 months.
Could they have had a good greenfield project and shipped it in 5 months?
They profited of it? Bold statement considering it is a meta product. I would be extremely surprised if they have achieved even a single dollar of profit.