Wait, you now need to be invited into a channel to post there?! 

I can’t post into Farcaster channel without invitation to it?

Talks about crypto and coffee. Building on-chain algo trading - check out my channels /algo-trading and /python

Instead, they should work on an algorithm that shows great and interesting posts within the channel. 

Now, they just limited how many people can post. 

Not great. 

Obviously algo is a hard thing but that’s why they raised money.

They changed it over the weekend.

Not a very great change.

I assume it is some kind part of Warpcast business model, because it makes the platform quite user hostile now.

Correct, channels are now like closed communities that are read access to everyone.
Channel owners can decide how open they want them to be and what members are invited.

Seen this a few times now. Not the most productive change since there is still a barrier to entry through the paid app