How can I do that? Probably a setting, right?
Discussion
Using Amethyst I can go to the three dots on the right hand to side...

And I can... Block / Report

Then I can hit the red button and I can fill out a form. This will be an even attached to my npub so it is visible to explorers.

I don't care because I am not interested in engaging with bots. They are programmed by retards and the retard cannot be separated from the tool. Kind of like how everything looks like a nail when the only tool you have is a hammer.
Only in Amethyst? Would it be applied to other clients? Amethyst is only available to android ðŸ˜
I'm just sharing how I handle the event.
I'd recommend throwing your iPhone away and then starting over. You paid too much for it and typing with two thumbs is stupid.
Now the useful advice...
When an event happens check to see what reactions you have. If it's a personality make sure that you know the npub and then maybe you can block with your client that way. Be careful some people or bots have used the likeness of others to spoof and you might actually block a celebrity who will eventually disappoint you but until then you can boot lick the right person.
Have a great evening!
Thanks for the advice!