1. No spam (at all).
2.Only post projects discouraging spam
3. To get the curator role, you must've helped lots
4. To get the manager role, you must've not be tricked by any spam
When I go on to Scratch,
I plan to take away spam,
minor to huge,
mild to severe,
forum to projects,
I plan to report it,
in hopes that Scratch completely destroys it.
TYPES OF SPAM
Blockspam is a type of forum spam in the form of nonsense scripts made with the Block Plugin such as saying a message with look blocks, doing an action with made up blocks, and making giant blocks.
The Help With Scripts forum has a topic specifically for experimenting with the block plugin, but those who spam elsewhere should be reported.
The old [blocks][/blocks] tags were also used to make blockspam.
Linkspam is a form of spam that consists of links and images. Commercial spam is considered linkspam. Harmful links and images, including unrelated images, are also linkspam. To help prevent this, New Scratchers cannot post external links or images.
ASCII Art is the arrangement of text to look like a recognizable image. Often when posted, users will copy and paste it and post it themselves, which severely clutters and lengthens the web page and can be annoying to read through.
Some popular images are a thumbs-up, rage faces, skull, nyan cat, the Illuminati triangle, you're epic sign, the troll face, and the popular "Doge" meme.
'CHAIN LETTER' SPAM
Another type of spam is a comment telling the user to copy and paste it on other projects or profiles and then something good will happen such as romantic situations and good luck. Sometimes, if the user refuses to copy and paste the chain letter (also known as "breaking the chain"), supposedly something bad will happen such as bad luck or even death. Even if they are not particularly threatening, these messages should be reported as spam. Many users who dislike spam fall for this.
Emoticon spam, also known as 'smiley spam', is a type of spam which uses emoticons for no good reason or adds an unnecessarily excessive amount. This also includes posting a big amount of emoticons (called "smiley wall") which can lag computers.
A spam project is easy to spot. They are projects with no exact purpose, containing either gibberish or nothing at all. Inappropriate projects are also counted as spam.
Commercial Spam is spam aimed at advertising websites or products
SEARCH ENGINE OPTIMIZATION
Search Engine Optimization is another form of commercial spam, which aims at making search engines such as Google display posts which link to commercial websites, etc. Search engines prefer ".edu" domains like "scratch.mit.edu", thus SEO takes place a lot on Scratch. Due to the New Scratcher status on the forums, most commercial spammers cannot post clickable links there to external sites, so most search engines will ignore them. In comments, URLs are also not transformed into hyperlinks.
Info from: https://en.scratch.wiki.info/wiki/Spam