Questions are deleted when they don't add value to the site, and when it's not possible for the question to be improved into one that would add value.
Questions can be deleted right away by either having a moderator delete it (which was the case here) or the question having a score of -3 or less (not the case here) and having 3 users with 20k+ rep vote to delete it. The question wouldn't be able to be deleted by non-moderator users for 48 hours given that it had a positive score.
A moderator would need to decide to undelete the question for it to be publicly visible, but you can see your own deleted questions, so you can see it even though it's deleted. If you go to your profile and then go to the "questions" tab there is a link, "deleted recent questions" where you can find it.
As for your question being opinion based, here are some of the factors leading to that. You say:
This gives the impression that you're asking for opinions on which of these you should use.
You also conclude by saying:
If there is anyone who experienced some,please advice to me.
So you're asking for advice, i.e. opinions.
Next, you give a list of various "difficulties with FunScript" as being:
- difficult to get informations.
- insufficient maturation in some points.
These are all opinions. These aren't verifiable facts, further leading to the impression that you're looking for opinions about what people do/don't like about something, rather than concrete facts.
Next, if we were to assume that you weren't asking for opinions, and that you really were looking solely for a list of verifiable facts about FunScript, the question would then just become "Too broad" as it's a list of things that can be quite large, what should be included in the list is also subjective (is that fact about the product an advantage, a disadvantage, or neither, that's opinion), would need to be maintained over time, etc. These types of list questions aren't the types of questions that we want here.