Probably they are that bad because the systems only have to be good enough that people can occasionally successfully submit an application. HR is a cost center in most companies, and spending money to get a less sucky website will not immediately pay off. After all, the people wasting all their time fighting with that website by definition are not being paid for their time.
Ultimately, the best solution is for the users to quit being such whiney bitches.
The LED bulbs I'm using sure seem to be an improvement.
All of the LED bulbs that I've used blink at what appears to be 120Hz. Now, it may well be that some people cannot see this blinking, but I can and it drives me batty. It's even worse than good quality CFLs. I bought a couple of cases of what I've chosen to think of as "real" lights just to postpone when I'll have to tolerate my whole house blinking at me. Ick.
My cranium nearly exploded while attempting to parse
"3yo lesbian, father of seven"
Mine too. If instead he had followed the usual English grammer conventions for the use of a comma between adjectives and written "3yo, lesbian father of seven" then I could have understood it easily.
The longer the title, the less important the job.