Sure, but back in reality no you’re not? No more than any other contributor?
If I want to use an auto-complete then I can, and I will? Restricting that is as regressive as a project trying to specify that I write code from a specific country or… standing on my head.
Sure, if they want me to add a “I’m writing this standing on my head” message in the PR then I will… but I’m not.
No, you can't. See, that's where you are just wrong: when you don't respect the boundaries an open source project sets that you want to contribute to then you are a net negative.
Restricting this is their right, and it is not for you to attempt to overrule that right. Besides the fact that you do not oversee the consequences it also makes you an asshole.
They're not asking for you to write standing on your head, they are asking for you to author your contributions yourself.