Just....stick around? Eventually you'll get to the 150 replies a day limit.
It's meant to limit useless spam&alts.
It's a great thing, so we have less alts because people don't bother waiting five days so they can finally post, at least not multiple times, but of course there is always exceptions.
It reduces amount of those scam sites spamming bots etc.
It's beneficial in multiple ways.
That rule only applies to new fags. So people won't make new accounts and spam shit out.