Quote from: Cookdata on Today at 08:56:06 AM

There is also a high chance that other SPV wallets will follow the adoption just to keep their customers in the circle so that they don't move to other hots wallets that run their own nodes with full RBF feature for users but how soon I can't say.

Most SPV wallets, such as Electrum, do not run their own nodes. It will be entirely up to the individuals running Electrum servers whether they enable full RBF, or leave it turned off (as is the default). There will also be plenty of nodes running older software and plenty of nodes who simply don't bother to enable it because they don't see the point, can't be bothered, are unaware of the change, etc. We will probably get to a network wide enabled scenario eventually (if not through individuals enabling it then through it becoming enabled by default in future versions), but we must still move through the part-enabled part-disabled phase to get there.

Quote from: Cookdata on Today at 08:56:06 AM

If a transaction has been flagged as RBF by a node, does block explorer has the ability to exclude it from transaction details?

The transaction won't be flagged as RBF by a node. A transaction is only ever flagged as RBF by the person who creates that transaction. Nodes with full RBF enabled will treat all transactions as RBF enabled even if a transaction is not RBF flagged.

Quote from: Charles-Tim on Today at 09:44:38 AM

I guess this might have not been proposed if many SPV wallets support RBF transaction by default like on Electrum wallet

That wouldn't have made a difference. Read point "# 2nd issue : RBF opt-out by a Counterparty Double-Spend" on this link: https://lists.linuxfoundation.org/pipermail/lightning-dev/2021-May/003033.html. The very ability to broadcast a non-RBF transaction, whether or not some wallets use it by default or not, creates an attack vector for such transactions.

Quote from: NeuroticFish on Today at 09:57:54 AM

Yeah, it's a somewhat bad news for the services that were boasting 0-confirmation deposits. But they can use LN now.

Speaking from personal experience, the number of merchants I use which accept zero confirmations for low value transactions is much higher than the number of merchants I use which use Lightning. I suppose this change will force them to adapt.