Its likely some year(s) since I last used search here, I use it on many other forums I frequent but never seen the search input field or link to it placed so unintuitively as on here. Also with just loupe icon, not even with text description 'Search'. Maybe if pple use other forum styles (I use LOMCN greenish style with white background) the input field is more prominent.
If I was in charge and didn't mind the bother changing it,
I'd change it on the premise that customer is always right. If he doesn't see it, then its no use telling him he is blind or something
but rather one should look for fault closer at home. That said, I don't want to place any demand on local volunteers behind this forum.