It doesn't seem unlikely to me that YC coined or at least popularized 'the pivot' in the context of changing business / startup directions. The first mention of using the word in that sense is in this comment [1] which explicitly mentions the usage by YC, while it only gets used when talking about pivot tables or more traditional uses of the word before that.

Edit: The "Lean Startup" blog series [2], which was quite influential, mentions 'the pivot' a little earlier than the post above, and really seems to coin it, so I guess that's the source (edit again: wrong :D).

[1] https://news.ycombinator.com/item?id=806601

[2] https://www.startuplessonslearned.com/2009/06/pivot-dont-jum...

I'd say it depends on a VC's investment thesis as well as the stage your startup is at.

For the former, some wouldn't like your answer because it implies a lack of conviction (why should I invest in something the founder doesn't trust). Others wouldn't because it adds a degree of uncertainty (if this B2C reels company pivots into MLOps tooling how can I do due dilligence on my investment).

For the latter, seed/pre-seed that is open to pivoting isn't necessarily a negative flag because they are barely generating revenue as is and are trying to find PMF, but a Series B startup suddenly taking about a pivot might imply they aren't doing so hot.

> A write up about the new design would be cool I think

We ain't the LPs. We don't deserve an answer.