Yes, spam is fundamental issue of this platform and its nothing related to platform we just need some more upgradation of options as you said Blocking System and if it gets introduced then implementation of actions can be done through individual, this means, if people receive any spammy comment they can take the real time action and this way they will not allow that particular spammer in their account and this way we can see clean section of comments.

I've spent 8 months on this platform and as per my analysis every comment which reflects as spam possibly the user is not spammer, they are just holding wrong ideology towards the platform or some lack of communication so it's not mandatory but in my opinion if we see any spam comments let's reply with some guidance or write them as how Steemit works and what actions they should do, this may sound waste of time and energy but who knows possibly that spammer can turn into effective blogger. I am saying this with experience because when I've joined Steemit Platform initially people considered my work as spam and one day i received the guiding comment from that point of time I've changed my work and became professional in my work. It's an collective action to make Steemit Platform productive.

Thanks for sharing this post with us and wishing you an great day. Stay blessed. 🙂