The number after the # will be 0 or 1 depending on whether the sending
client was identified to a NickServ account.
+
+The process for loading filters is as follows:
+
+1. The Hyperscan database is serialized using hs_serialize_database().
+2. The serialized data is base64 encoded
+3. A 'SETFILTER NEW' command is sent.
+4. The base64 data is split into chunks short enough to fit into
+ a 512 byte IRC line, taking into account space needed for the
+ command, check field, and server mask, and send using 'SETFILTER +'
+ commands.
+5. Once the entire database has been sent, a 'SETFILTER APPLY' command
+ is sent to commit it.