[Sebb767]

Absolutely not. Imagine I want to buy your house for, let's say, 200k$ and sign the contract. So need to quickly find a replacement, move out, clear the legal stuff and probably miss work. Then, at the last moment, I back out. Don't you think 5k$ would be appropriate for all the now useless work and money spent on your side?

It's the same number with Twitter, just scaled up to the actual offer.