Open source protocols for classifying transactions in order to prevent fraud attempts?

The recent thread by u/upunup about a transaction address spoofing operation going on got me thinking whether there are any open source protocols / servers that could supply classification info to light wallets, to protect users, e.g. by auto-freezing dust that looks like it's doing something malicious like just adding similar addresses likely to profit from user mistakes etc.

The idea is not to have a single 'source of truth' of course, but services that the user could choose.

Sort of like phone call spam filtering, your wallet could tell you that it thinks an incoming transaction from an unknown address might be spam/malicious, and you could take action manually or in some automated way.

Does this already exist for any Bitcoin wallets you know of?