Post quality is not the problem. If you try to limit posts you wont necessarily get more quality but you lose diversity. Suppose you're having a conversation on Steemit and somehow you reach your post limit? So now you have to take your conversations back to Reddit? Back to Facebook?
The limits on posts is the amount of time a person has in a day to post, and the amount of attention a person has to curate. The collective attention we have goes up as we have more people who can vote. Steem Power would perhaps benefit if we have a closed system which forces people to buy Steem Power but then it defeats the whole point of
Steem which seems to be to appeal to the average person, not the elite writer, not the elite blogger, but the regular person. The regular person will not fare so well with these limits and the risk is Steem could end up like Bitshares where in order to play you have to pay (for Steem Power). Ideal would be to have an open system with no barrier to entry, where anyone can post as much as they want, but there is a limited amount of attention to give and a limited amount of time.
I could be wrong of course if someone can write a bot which can spam ads in comments and somehow that clogs Steem but I doubt it. Those ads would not get voted up, and may even be voted down, which means eventually we wont have to see it. Please think of any future use cases for Steem (not just Steemit) where a person might want to post continuously throughout the day in the form of some sort of daily stream, and you will see how this could backfire.
Chatrooms would not be possible at all for example if we treat Steem as only existing specifically for Steemit. Because if you look at an IRC style chatroom then most of the posts might not be considered valuable except to the people within that particular room. How can Steem allow for these sorts of use cases where a small group of people might find a conversation extremely useful but the majority do not? While I might stand to benefit honestly from people buying Steem Power and from these limits, I don't know if Steem itself would benefit if when I invite new people, they must play by rules which I didn't have to play by, and are limited in ways which they aren't on other similar social media platforms.
i kinda agree, but the main reason i think they should limit is because i think we need a chat or something like, so conversations wouldnt be a problem and posts wouldnt be the right way to do it.