You neglected to quote the most relevant part of the article which answers your own question regarding Monero:

Proton Wallet is in a strange position. I’ve spoken to a few sources who suggest that privacy features like CoinJoin, which can mix Bitcoin in order to better anonymize transactions, were intended to be included at launch. The crackdown on the ill-fated Samouri Wallet project by U.S. authorities last April certainly put a damper on privacy in the Bitcoin space, and likely made Proton wary of introducing such features to the public.

Proton suggests this themselves, stating on their website:

“Coinjoin is considered the best solution for improving blockchain privacy. It works by mixing your BTC with other users’ BTC in a collaborative self-custodial transaction where you get back the same amount of BTC that you put in but on a different address that cannot be easily linked to your previous address. However, in 2024, in what many consider to be a regulatory overreach and attack on privacy, some of these Coinjoin services have been declared illegal in the US and EU. The future of financial privacy may therefore be decided by ongoing litigation in the next decade and privacy advocates should support these efforts.”

This situation likely soured Proton on other privacy-friendly cryptocurrencies like Monero as well. I get it, financial privacy is an extremely challenging task for any company to take on. We can’t expect Proton to take on the risk of offering a completely anonymous payment service in the current legal climate, but it begs the question: why enter the financial space at all?

While not particularly revolutionary, the fact that they provide a unique HD wallet address every time you receive funds through your same email address does provide additional privacy as no one can see your previous transactions. Even when those are rolled up together later it does make it harder to associate an exact total balance with you. If you used your wallet for smaller spending rather than making a single large send from it, that makes it harder still.

Sure, I would have liked them to add Monero too, but it gets thorny when you’re a regulated company dealing with that.

It seems like a no-brainer for me. Limits bots and provides a small(?) income stream for the server owner.

This was linked on your page, which is quite cool: https://crypto-loot.org/captcha

Add a requirement that every comment must perform a small CPU-costly proof-of-work. It’s a negligible impact for an individual user, but a significant impact for a hosted bot creating a lot of comments.

Even better if you make the PoW performing some bitcoin hashes, because it can then benefit the Lemmy instance owner which can offset server costs.

Edit: Proton has REMOVED the P2P tick from the VPN on this plan since I took the screenshots below. That sucks.

I would gladly pay like 5€ monthly for little storage, VPN and few email aliases)

Includes VPN with P2P and streaming, Drive with 15GB, Proton Pass, etc.

https://proton.me/mail/pricing#compare-plans

Really? With Firefox in a Private browsing window - are you certain?

Here’s mine, with the vault currently locked, but not showing any locked state (point 3):

And for point 1, just unlock the dropdown extension, exit the extension window, then click on the icon again. It will be re-locked when it shouldn’t.

If you’re really not seeing this, would you mind telling me how you fixed it?

There are issues with Firefox private browsing windows that don’t happen in Chrome. Quoting their help article:

• Your vault will lock every time the browser extension closes, unless you set vault timeout to Never.
• Unlock with PIN will work only if the Lock with master password on browser restart option is not selected.
• The badge icon will not update to show vault state (locked or unlocked).

Not huge issues, but definitely annoying on a daily basis.