What does Particl as a privacy platform have over Monero and other privacycurrencies?
Monero is a decentralised currency that is currently reliant on centralised services for its use. Thus in its practical implementation it is not fully decentralised and there is a central point of failure when transacting.
In contrast under the Particl network and client listings, transactions, escrow services and settlement are fully integrated and decentralised; this includes:
Network security where the nodes can be obfuscated via tor integration.
Transactions security where the buyer, seller and amount can be obfuscated yet verified by RingCT.
Seller security whereby the nature of listed items being sold can be made private and obfuscated to the rest of the Particl network and only viewable if the viewkey is disclosed (i.e. the seller discloses this via private communication to potential buyers).
Communications security. The client nodes have the capacity for sending encrypted messages between each other allowing for truly private communications between individuals on the Particl network.
Settlement security by providing a trustless third party free escrow service (the mutually assured destruction escrow) whereby both seller and buyer deposit a bond that can only be released when both sides agree goods/services have been delivered as specified.
I'd just like to point out that many of Particl's competitors (syscoin, district0x, openbazaar) do not offer this level of security or integration in transacting, listing, exchange and settlement, because they lack one or more features that are already built into Particl by default; this includes the integration of exchanges and direct currency conversions via atomic swaps
..
Whilst Monero and other private currencies offer anonymous settlement security with the benefits of decentralisation, they do not provide the other forms of decentralised security I've just listed which Particl and currently Particl alone proposes to.
Yes decentralised marketplaces could accept monero currency but they would have to provide decentralised, trustless privacy centric escrow, communications and private listings to provide the same level of service and flexibility of selling/buying options that the Particl platform intrinsically provides.
This is because in addition to what I've described Particl also enables anonymous or public settlement of public listings.
By:Joske