I have absolutely been screwed over by ageism. My experience, talent and expertise served me well in newspapers, but when that industry imploded and I tried to jump into other arenas, my relative weakness with technology was an issue. Don't get me wrong; I can do anything I need to do, but I'm certainly not as good at it as someone who has been using computers since early childhood. Most places will take a mediocre writer with stellar tech skills over a good writer with slow tech skills. In fact, they don't know the difference between a mediocre writer and a good writer. Everybody (the employer and the halfway decent writer with good tech skills) wins but me. Thus my daily presence on Medium, where I am actually appreciated and rewarded.