reddit.comは安全ですか？

Overall a very good site. It can have NSFW content, but only in certain subreddits. NSFW content is marked with the [NSFW] tag, so it's usually pretty easy to avoid.

This site has a natural tendency to create an echo chamber. The selection of what should be 'quarantined' also doesn't seem to follow their TOS, but rather, the political agendas and opinions of the moderators. I have rated it as suspicious for these reasons.

The users of Reddit are predominantly civil and okay for children, but there is a tremendous amount of pornography, racism, violence and other adult content in the various parts of the site. Parents should be very careful about allowing access to Reddit to children.

It is a great site with a very diverse community. There are ads, but they are very out of the way/acceptable. Any NSFW content can be hidden away, and they are mostly kept to NSFW subreddits. The site uses HTTPS.

Great and informative website. Consists of interest groups (called 'sub-reddits') on any topic you can think of. The front page is pretty child safe but there can be adult content although usually marked with an 'NSFW' sticker or a page asking you to confirm you are over 18 before viewing.

99% of the subreddits (Subs) are SFW and very kid friendly, with moderators acting within the hour to remove any hateful posts or submissions. There is the risk of finding some NSFW material, but nine times out of ten, the submitter of the content and/or the moderation team of that subreddit label it as such.

It used to be a decent site, but the new administrators are really making a hash of things. A few of the recent problems include the following: a troubling lack of transparency regarding administrative decisions, apparent bias and favoritism regarding enforcement of community rules, a seeming lack of respect for the concerns of the site's userbase, and a betrayal of the principles espoused by one of the site's founders (the late Aaron Swartz).