Sploder has transformed me not just in potential but in maturity. The site gives you many options. I grew up with this through middle school. I joined when I was 11 or 12 and now I am 14. It has given me a home. There are many updates and things to hope for, and each creator has its own special thing that I have come to appreciate.
The moderation system is ok. The site's owner has a full team of moderators who I can count myself amongst the ranks of. The commenting may not be well moderated because we as a team of about 50 people cannot get every single comment and game and delete it or report it to the site's owner. The only way to have total moderation of games and comments would that a bot would have to sort through everything or have very strict limits. That would constrict us kids from expressing our opinions. Unfortunately there will always be conflict and that is impossible to completely topple. Now you may think "MODERATORS AS KIDS?" Yes, we may not be as intelligent or efficient as bots or "adults" however the role teaches us how to handle vast responsibilities, so do the other two jobs available.
Onto the actual learning content, each creator may not offer direct learning like science, but it does offer math. Not traditional math, but more like deductive reasoning. It also teaches people that every action has a reaction. In order to make a successful game you have to use logic to determine whether your trap or puzzle will work. Looking at the ppg creator, which is by far the most advanced, it is the most experimental of the bunch. Cause and effect is the biggest aspect in making a ppg game. While it may not be the most kid friendly because it is complex, once you get a hold of it after some persistence, you can go far. Each game creator also teaches perseverance, a skill that can take any person far in life. Obviously the site isn't made just to teach you math and other academic values, but it does it anyway.
The biggest thing this site has going for it is its creativity factor. When you open the creator you are left with a blank canvas and you have to, shall I say, paint a masterpiece. Starting from nothing and building a full scale adventure does not happen overnight, but with persistence and intelligence it can happen quickly. As the site and creators expand, more options become available and things become better and more fun to play. When creating a game your ultimate goal is to make it fun, no? Using all of the skills to make a game and your own "set of paint" or style, you can make a fun adventure that reflects your skill as a maker. You can play others games and learn and grow from each trial you play.
Negative qualities? Other than the fact that we don't have the most efficient moderation staff in the world due to the size of the site, there isn't anything noticeable. You can join the community, meet new people, and just enjoy what the site has to offer. Obviously privacy is an issue on sploder, but privacy is an issue almost EVERYWHERE you can comment. It is at the user's digression to how much they reveal. The main site offers some privacy options of course, but again, sploder, or the internet for that matter, cannot protect all children at all times. The internet is a vast ocean full of beautiful reefs, such as this site, and toxic dumps, such as some other...not so nice sites.
Overall I think this site is worth a visit at least. It has a lot to offer, many great options, and it is just an overall blast to be on. I have enjoyed it and I still do. Of course this is just my opinion, find out for yourself!