I also used to face same issue on my website Wheel of Names after doing research i found that the message "P.S We are running a small javascript miner..." on Blogspot is not a standard or common message that you would find on the Blogspot platform. It's possible that someone added this message to a specific blog or website hosted on Blogspot, but without more context or information, it's difficult to determine the exact meaning or purpose behind the message.
A "javascript miner" typically refers to a script that runs in a web browser to mine cryptocurrencies like Bitcoin using the visitor's computational resources. This practice, known as "cryptojacking," is generally considered unethical and is often done without the user's consent. However, it's crucial to note that using such scripts without the user's knowledge and consent is a violation of most platforms' terms of service and could potentially be illegal.
If you encounter this message on a Blogspot blog or any website, it is advisable to avoid interacting with the website further and report it if you suspect any malicious activity. Keep in mind that the online landscape is continually changing,