I think that the amount of posts allowed per day has to be put up for debate. For some, 6 per day will be more than enough. Of course, if they get into an actual conversation, that will be nowhere near enough.
When I was BRAND NEW some of my largest rewards were from comments, rather than posts. I got close to a dollar on some comments, because I always put a lot into them when I do comment. Now...people can't really do that when they're new.
But there may be a lot of bad actors with low SP now. So what are the sacrifices we are willing to make to lower spam and abuse? Perhaps a few posts for brand new users will be fine...but we'll likely have to start groups to delegate to new users that show promise.
There has been talking of concerted efforts to identify and support newbies who are genuine contributors, not spammers. I personally don't know how long that's going to last or how thorough it can be. I certainly don't need that second job. Not everyone even knows to do an "introduce yourself" post. So how do you even find these new people?
My experience says 6 per day is not enough, especially if you want actual dialog and relationship building. But if we can get the word out to use Discord/steemchat as a sort of external groups feature, maybe that will work. They can build relationships someplace that doesn't require RC and only come to steemit when they're ready to transact.
My guess is that to do it fully effectively you would need to use a tool that filters out new posts from anyone over a certain SP. I'm pretty sure that a few tools like this actually already exist. We'd just have to create groups that curate these posts to identify potentially good new users for upvotes and delegations. With a few users volunteering to identify new users, it likely wouldn't be too difficult.
I think the main issue will actually be getting enough SP to delegate out. Because to do so you need to actually have the steem powered up. It could possibly done where individuals pick the users that they want to delegate to personally.
I think the worst thing for the limitation is actually that it will take 7 days even after someone makes a few posts to get any SP, unless they pay. I think that new users will not be dissuaded by limitations. Many of them will work hard to get those limits increased. Like when you start a new game and are limited as a player. You won't just give up because you can't fight endlessly, you'll build up your character until you can succeed.
But there's an extreme problem right now. Not only are people incredibly limited with the number of comments and posts that they can do, but there's still and incredible difficulty for many accounts to get noticed and upvoted. There are literally contests giving away money every day that are having trouble getting enough people to enter them, for free money. How insane is that?
I already chat every day on steem.chat. It's a great place to make friends and connections and just have fun. I personally dislike discord...but some use certain discord servers to make connections and get upvotes. Discord servers have a major issue getting the word out there and getting new users. From the time I was new people were like "go to discord" and every time I was like "where?" There are tons of discord servers, each with their own users and rules, and each requiring invites. Personally, I like steem.chat better.
If we got more users to join steem.chat or specific discord servers, then perhaps they could make connections and friends...but I've been here a year, have quite a few friends, and still have issues getting rewards on certain posts that I've put a lot of effort into. Of course, I've also gotten a bit more than I think I deserve on a few posts over the last year. Thankfully it seems a bit better in the last few days though.