Absolutely, @security_paranoid - you can flag other posts of theirs. The good thing is that whether it's mods or community that flag as spam, that feeds into charcoal to aid in preventing spam.

@user2153235 - there are companies that publish those sorts of things, ranging from the annual DBIR and others, to daily status feeds, but they change a lot over time

You'll need to remove any reference to "is it safe" - because that is a null question.

Most ctf's provide a decent walkthrough after the fact, so you can learn without spoilers.

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@ArtemS.Tashkinov - you think your post adds a lot of useful information, but it really doesn't. It gives nothing additional to a future visitor. Listing out the file formats that have been exploited doesn't address the question at all.