[2020] Can't sell certain ships

Do you know that you can get her back for credits at any time? All you need is just submit a ticket.

She's slow but once you know her pros and cons and spec your captain skills accordingly - she's quite a beast

Both of them are special ships. In both of these cases I have yet to understand why would you want to sell them in the first place?

Um... WHY would you sell JB though!?