Even 80% loss sounds silly for a traditional company, unfortunately that's life in crypto.
This is true, but on the flip side a 2000% gain in a year also sounds completely silly for a traditional company, and yet that's what bitcoin did in 2017. You've got to take the highs with the lows, and I'm sure (at least, I really hope) that no one has chosen crypto because they believe it to be a stable asset.
But the more important question before you start playing with BCH is - how much is Jihan Wu's personal wealth.
Nah. The most important question before you go near BCH is - why? It's a failed fork, which has now forked in to two failed forks. The two chains have just become playthings for the ever more ridiculous feud between Ver and CSW, and all either of them have done is slowly lose value against BTC.