The main problem with Open Markdown links in new tabs is that they open in a new window instead of in the current tab. This can be a distraction if you’re trying to work on a document in multiple tabs and have the link open in a new window.
The main problem with fa fa email is that it can be easily spoofed. This means that someone could create an email that looks like it is from a trusted source, but actually contains malicious content. This could allow someone to steal your information or even attack your computer.
Font Awesome icons are designed to be used in web and mobile applications. However, when used in email, they may not look as good as they do on other platforms.
The main problem with favicon meta is that it can be used to track users across different websites. This can be problematic because it allows websites to track users without their consent.
