Raw ETH transfers are one of the lowest cost operations in crypto. Often used to (1) clear stuck transactions via nonce replacement, or (2) perform an "inscription" where a user sends ETH to themselves and appends a message requesting the off-chain minting of inscription tokens. This is illogical for numerous reasons but popular.

Within this narrow subset of ETH transfers, I categorize inscriptions as sends to self (ignoring nonce replacement), and front-back phishing and sends to what looks like oneself, but is actually a send to an address containing the same first 4 characters AND same last 4 characters. As this is another common scam. Scammers will send a small amount of ETH to addresses hoping to trick them into treating their similar address as their address when they copy from an explorer.

NOTE: This is both the # of victims AND the # of attempted scams. It is likely a large overstatement of the # of victims.

Below I categorize Scammers as front-back sends < 1 ETH, and Victims as front-back sends > 1 ETH as a rough heuristic.

Filtering to front-back phishing attempts (ONLY first 4 and last 4 characters of address match).

Then categorizing sends < 1 ETH as the scammer setting up the scam, and sends > 1 ETH as victims falling for the scam.

You get scammers spending roughly 5 - 10 ETH per day to get 20 - 30 ETH per day, with some worse spikes.