the confusion even produced XBH as a fork from Kraken's XBT ... honestly we need more letters as in ABCD coin. A namespace huge enough to carry 26^4 different Altcoins

Can you deposit BCH to Kraken to sell?
Not in a timely fashion. 66 Blocks mined, to man confirmations required. In comparison BTC mined 456 blocks in the same timespan. Datasource:
https://cash.coin.dance/blocksCurrently, we can have over 17,000 different altcoins with 3 letters. I don't think we're going to pass that number anytime soon..
I like your "prepare-for-the-future" atitude though..
Regards,
Trump