No it's not set by the server blitzz. If you try to send a message or notice to a channel or nickname that is 4 thousand characters long, the server will cut it off at it's limit and the rest of the message will be lost. The limit is usually between 430 and 435 characters. This script will break the line down into smaller messages that the server can handle and it will send them 1.5 seconds apart. Servers won't do this for you.

The -st is there for a reason. This code is made to be used in a script. Script errors should be posted in status.