The problem with tools like this is that they don't actually check that the mail is sent correctly. You can define security keys, but they don't mean anything if your mail server doesn't use them correctly.
For testing, I use https://www.mail-tester.com/ which you send an email to and it does more thorough tests on the server and email itself.
Anyone interested, there's a colony sim game named Timberborn where you play as beavers. Unsurprisingly, this comic gets posted there every few weeks. :P
I was going to point out that comics like that should already be covered by the rules against discrimination... But reading the sidebar it doesn't look like we have rules like that. We have a full paragraph detailing how an exposed nipple should be tagged, but nothing saying "hey, don't be a homophobic sexist bigot". Probably worth adding something to the rules like:
Discrimination such as homophobia, transphobia, sexism and racism are not welcome here. This applies both in comments and posted comics. Likewise, artists who have a large history of posting discriminatory content such as Stonetoss and Jago are similarly not allowed here.
Nazi bars form by exploiting moderators who are too afraid to say no and actively kick out a culture of hate.
Interesting you bring up blackjack because there are absolutely people out there who, through skill, can flip the odds and make a profit (i.e. card counting).
People aren't automatons and don't rigidly follow probabilistic models. Especially probabilistic models likely created to push an agenda.
They're a person, not a statistic. Telling someone fighting with depression that they're going to lose that fight is a dick move and actively harmful. If this is a genuine mistake rather than transphobic ragebaiting, please consider the effects your words have on people.
And to all the trans folk reading this: You got this. Don't let haters get you down just because you're making changes to improve your life. <3
Doing a very quick search on this and it looks like the firmware updater uses webbluetooth. This knife has bluetooth hardware in it.