My answer is really “it depends”… If it’s a site / seller that I’m invested in and regularly buy from, I’ll put up with all sorts of irritations! However, my preference is an awesome search engine so I can ignore all the other filters that may or may not be supplied.
So when I’m shopping on Folksy, what I’ve learned is that using the filters here is well worth the clicks as you’re much more likely to find what you want. However, if I’m searching for something specific, I know that I’m much better doing a google search starting with “site: folksy.com” then single space and my search term, rather than using the folksy search function.
Like Sasha, I don’t like to see lots of collections - 2 rows is enough for me too and I definitely do look through shops when I see something I like (via collections or not) but from my own search data from my online shops, I think that’s unusual for many shoppers - it looks like they look at the thing and that’s it.
I’ll always come back to the fact that an awesome search function is essential if you want your things to be found, whether it’s on a site or getting found on Google - and on a site like Folksy with lots of sellers, seeing pages of the same seller’s designs is the biggest turn off as a shopper ever.