For me, it would be too nerve-wracking to use a fake first name. I would be afraid of not responding to it! Ha!
In fact, sometimes on here, people address their post to 'Storm' or sometimes even 'StormCloud', and sometimes it takes me a beat or two to realize "Hey! That's me!" HAHA!!
(Only sometimes, though)
Although, there are a reasonable number of people who can't seem to pronounce my first name, anyway. Like some receptionists or nurses at the doctor's office. When no one responds, and they call it a 2nd or 3rd time, I'm like "Hey... maybe they're trying to say *my* name!"
It's really not *that* difficult, and it's *not* a created name, nor a traditional name with a weird spelling. It's a traditional name with a traditional spelling... that now days is usually spelled the way it sounds rather than the traditional way.
Practitioner of the Nerdly Arts.