He's generally right though. Let's go through what I think is going on...
> I believe guided by the number of updates, it means it is not better.
Going by number of updates, more updates means worse. (Not always true but frequently; if you have to keep issuing patches to fix things, something is wrong with your QA process, especially if those are security issues). SMF 2.0 has had 12 patches in 5 years. This speaks to its reliability far more than it speaks to anything else.
> The truth I still smf couple of years ago and the truth stability (compared to other cms I used) is not compared with anything besides can manipulate to some extent to make almost any idea to have knowing some programming ...
I think Rock Lee is saying they started with SMF a couple of years ago, and that it is more stable compared to other CMS platforms used, but stability is not the only thing to consider, especially since you can change SMF to do almost anything [as a reason why updates aren't necessarily required, because why do updates unless you need to]
> Rather late what should take but goes well, for my country the saying "Step by step, better late never" because to hurry things go wrong and many collaborate raring and leave their bit with much effort.
Generally an observation that things should be better late but done well, with their country's variation on 'better late than never', because if you hurry, things go wrong and many come and go with doing a little but it's not all cohesive and people get fed up and leave before their part is done.