SNAKE VINE, CLIMBING GUINEA FLOWER, GOLDEN GUINEA VINE (Hibbertia scandent)

When I was down the coastal seaside town of Altona recently, I notice this yellow flower in many residential gardens.   Took me a while to identify it (and please let me know in the comments section if the name is incorrect of course).

I find I’m getting better and better at Googling flower names as the years go by.   Sometimes I find the name straight away.   Other times it can take half an hour, but all said and done, Mr Google is most helpful.

Most the leaves and flowers in residential gardens had little round holes and I couldn’t quite work out whether it was a plague of a certain pest or maybe, even, heavy rain?

Can rain (or hail) leave such marks/holes?