Should be noted, a lot of phobias are common but trypophobia is not one of them. There are hardly any case studies where pattern-based imagery has actually sent

Should be noted, a lot of phobias are common but trypophobia is not one of them. There are hardly any case studies where pattern-based imagery has actually sent someone into fight-or-flight the same way that spiders or heights can. Most of the time when it's discussed on the internet it's a rather mild disgust/horror reaction rather than a clinical phobia. It's possible the term has only gained popularity from internet communities where people intentionally share wacky images, which isn't exactly a useful support group. That's not to say it's not possible, just so extremely rare that it's not a reasonable design consideration.