Can't speak for any others, but that two that I use - HodlHodl and AgoraDesk - both do.
Added to OP.
I would add a fourth method to your list, which is "Trade with people you already know".
Ok, I added that too.
Have you traded with the same person on Bisq a few dozen times with no issues?
No. Each time I've used Bisq to trade is with Revolut, and each time I used different seller (as my payment history in Revolut is concerned). I don't talk to them at all, I just picked a trustworthy one (who was signed up there for like 2 years) and everything went smoothly.
If you've done, please answer me these questions of mine:
- If you don't have a reputation in the DAO, what kind of protection do you get in case such stranger wants to rip you off? Sure, he might look trustworthy, according to the offer table, but can you risk it?
- Do want to trade likewise to avoid the DAO fee?
- Can you become part of the DAO somehow, and set your own fee as arbitrator? Competition is what would lower the prices, and I'm sure part of high trade fees is small number of arbitrators.
Do you have friends or colleagues from non-bitcoin walks of life who also use bitcoin?
Yes, but I don't want to mess relationships with bitcoin trades, as I may bring them to an uncomfortable situation. No friend is ever going to charge me for like 10% above the average, while he should to, according to the market price. Nor would I want to sell bitcoin for cash whenever a friend requested it in the same price.