As @fow remarks below, would you care sharing your thoughts on the steem node surpassing 32 GB of RAM (for a simple witness node; more for a full API node if I'm not mistaken) ?
Why is the RAM requirement increasing, is the need of RAM expected to plateau at some point (at what level) and do you I see this increase as problem ?
On Discord a french witness @evildido complained about this increase and said he's losing money and is considering stopping witnessing. Those are valid concerns, I would be interested in your take on this issue.
Can something be done via configuration (e.g. increasing the percentage of rewards allocated to witnesses so it becomes economically more attractive) ? Is there a possibility to optimize (maybe work is already ongoing) ?
It's certainly something to keep an eye on, but as I mentioned to @fow, it's being addressed. Depending on the witness ranking, getting a 64 GB server should still be okay, but if you're way low on the rankings, it could potentially be a problem. I think Moore's law will continue and new hardware options will meet this demand at cheaper and cheaper prices. As long as we have enough backup witnesses to keep block production decentralized we should be totally fine. The Steemit, inc team is working on improvements as well, so there are plenty of options for optimization.
You’ve got the point but my fear is on full node.
I’m currently using some of them for my bot (dtube community support) and I can see that few of them are reliable.
Another point. We need more full node. steem Blockchain is too centralized because spec requirements are too hights.
This is a big issue for the security plus if it not adressed, we will never catch even 10% of Facebook traffic.
Hear hear, I am a witness, but I keep waffling and procrastinating on launching a full rpc because of the cost, and frankly my projects dont require an rpc in either case. So, it would be an expensive public service, and I'm not that wealthy.
I am starting to fear that, in the long run, the top witnesses would have to be companies.