Sure yeah. It completely depends on the question though. About learning about blockchain though? I'm pretty sure majority of the content out there are still decently dated. Also, while doing proper research you should also take into consideration the date of the article you're reading in the first place.
Yeah, as a generalized view repetitive questions aren't that bad. People tend to understand better if they can ask their own questions in their words though. Blockchain, is a topic which is well documented enough. But, things like Bitcoin wallets for example might sound like they are well covered, but receive updates all the time which could change things or make things easier.