We are thinking about adding ChipMixerLite version that would work exactly like old BitMixer - you send output addresses, receive signed contract, send coins and wait a few hours to get them. The good part would be simplicity. The bad part would be split of mixers volume and less privacy. What do you think about it?
You'd have to clarify exactly what the risks involved are before the user decides to use it. The problem that you have to get past is that
if the user sees an inconvenient version and a convenient version, why wouldn't they choose the convenient one? It's just like Purse.io's slider of discount. As you go for higher discounts it becomes more likely that the goods were bought from stolen credit cards, but the lay man doesn't think about this and just slides it as far as possible.
One incentive that you could have for them to use the main version is a static fee on "Chipmixer Lite" similar to Bitmixer. Then they'd want to use the main version unless they couldn't handle using Electrum wallets at the time or they only needed the simpler privacy features of the Lite version instead of protection against governments and other powerful forces.
The only problem with that incentive is that it could mean that when using the main version, they might want to pay a lower donation than the fee for Chipmixer Lite. The large users that understand your service properly might not have this problem, but smaller users could.
In any case you would have to be very careful about how you handle the coins for this service.