You are wrong.
Time limit between two posts does not make sure anything about post quality. There are two possible results:
- For real users, it is sure that the 30-minute gap, for example, might make sense because it will force them to spend more time to read more posts, more topics, maybe just to get information for their own interests in the meantime to pass the 30-minute gap, and they might have more time to brainstorm and compose their posts.
- For shitty posters, it does not result in any changes in post quality. They simply post their first post, then play games, and 30 minutes later come back to show their shit again, repeatedly till they hit post quota.
However, such the rule on time-gap between posts is certainly reduce spam, and it makes sense.
Time limit between two posts does not make sure anything about post quality. There are two possible results:
- For real users, it is sure that the 30-minute gap, for example, might make sense because it will force them to spend more time to read more posts, more topics, maybe just to get information for their own interests in the meantime to pass the 30-minute gap, and they might have more time to brainstorm and compose their posts.
- For shitty posters, it does not result in any changes in post quality. They simply post their first post, then play games, and 30 minutes later come back to show their shit again, repeatedly till they hit post quota.
However, such the rule on time-gap between posts is certainly reduce spam, and it makes sense.
I'm sure the 30 minute gap for every post helps a lot to retain the good quality of a particular post (assuming that he is not a shitposter from the first place). Doing such thing definitely gives your brain a rest even only for a while and have some time to gather new ideas and motivation to post again. Are the spammers out there aware of a robot-like feeling every time they do continuous posting, what do you think? Then why they still do it despite of the bad feeling? Oh I forgot! Mainly because of money 
.
If we think that 30 min. gap is considerably helpful, what more of a 1 hr. gap per post? What do you think?
. If we think that 30 min. gap is considerably helpful, what more of a 1 hr. gap per post? What do you think?
It would slow things down at least a bit - maybe just enough so that the incentive of posting 20 replies a day across multiple accounts is gone. 30 minutes to earn $1? Would spammers still chase that? I reckon some would but for many, the interest/allure of quick money is gone. Also if you're only being paid for 1 post every 30 minutes - you *might as-well* make it a constructive post to be paid for - would users not tend towards this conclusion? It would be easier to spot the fluff posters too in this case? (those who continue bullshit posting even if they are paid one post/30 minutes.)