Storing sats with custodians, it doesn't matter the scheme. They might rug you/fractional reserve. 

At least with eCash there is some decent privacy benefits when using a custodian.

I'm a custodianship maxi, but i use custodial services all the time: WoS, stacker.news, ln.tips

they are just very convenient. I wish they would offer me better privacy and data security by using an eCash clearing system instead of storing sats balance on the db

I'm still curious about the long list tho

gandlaf21

nkmg1c_ventures

bitcoin

Cashu: Chaumian E-Cash & Mints Over Lightning - Bitfinex blog

And1

Is Bitfinex about to be a rehypothecated mystery sats fractional reserve wrapped Bitcoin bank? (I certainly left out a few slurs, but you know who wants to hear a long list of slurs?)