Sort:  

I have to disagree on this one. Fast-Reply is only providing an easy way to stay in contact with people who have already interacted with you. Therefore, It is not possible to create unsolicited messages (aka spam).

Even if it was the case, spamming on Steem would be 1000 times more efficient using automated scripts to react to blockchain actions without humain interaction.

Keep in mind that I wrote that comment as a reply to someone pointing out that the 20 second limit for comments will be removed, not as a reply to a comment about Fast-Reply.

It's my bad @valth !
Then we totally agree, reducing the limit will definitely make it easier to spam the network with automated script I was mentioning.

Yep, then we agree completely, @oroger :)