Irregardless has been used so often that it actually is in the dictionary now and that's kind of sad.

Irregardless一直被频繁使用，所以现在确实也纳入了词典，这可真无奈啊！

youdao

So regardless (not irregardless) of whether a company would refuse to hire for poor grammar, why not take the opportunity as an employee or as an entrepreneur to hone this skill?

FORBES: I Don't Tolerate Poor Grammar