Got to have the comments, that's the whole point of choosing Florin. If the TX messages are in plain text then you could dump the block and read the messages in vi or nano. How does the florincoin.info get the TX message from the chain?
The comment is he encoded at the end of the raw tramsaction.
You can iterate the chain using getblock then pulling the list of transaction from said block, with that list of transactions you can call 'florincoin-click get raw transaction [txid] 1' and it'll return a JSON response including the comment at the end