I highly doubt that it's doable without some the pre-existing text to play with, notice that you need to a post every 36 seconds and that is more than enough to actually just post but the hard  part will be finding WHERE to post.

you need to stay on-topic somehow ( you can't afford to risk your posts being reported for being off-topic ), so even with copy-paste you can't paste something like "thank you sir for the nice project, i am sure this ICO will be successful" in say a thread in Reputation.


Therefore to be able to post at that rate you will need the following.

1- A list of all the threads you going to use.

2- A good portion of what you plan to type ready to be copied and pasted.


on a human-only level i highly doubt you can achieve that rate without at least 1 of the two points, however , going on semi-automated / fully/automated method, you can certainly achieve much "better  " results.


however, Shitposting does not have to be this efficient, i think i personally can do up to 20 "acceptable" posts per hour , so if if i have 5 hours a day i can do 100 posts a day ( i won't do that   ).