How strange it was to read this thread, having used a first generation Patagonia Specter pullover for many years with no problems. Last year, put it in the dryer on Perm Press for 20 mins, and the DWR was restored from passable to super. Granted, don't know how long that will last.
This year bought a RAB pulse becasue it is a couple ounces lighter, and packs smaller. Not as much coverage below the belt as the Specter, and the DWR is only passable, but kept me dry last Spring in an all day hard, cold rain. Am still not sure how it will fare under rubbing pack straps. This purchase was based on an article on BPL comparing a number of tops. The Specter purchase was based on Patagonia's well-earned reputation for durable water repellence that is actually durable.
Have flirted with the DryDucks and Frogtogs because they were cheap. The DDs developed tears and pulled out seams just from around home use. The Frogtogs pullover was a little sturdier, but heavier, looked like cardboard and did not ventilate well.
It may be that some have been attracted by the light weight and/or low price of some of the tops without looking more into performance. I admit to having bought a skimpy Sierra Designs jacket, and a similar one from Campmor in the past to save money. They were useless for backpacking, and have been relegated to use around town on rainy days for shopping etc. Only use the BP raingear for BP to keep it clean and avoid the need for washing.
But the Specter was around $100 at an outlet sale (the website also has sales), and the RAB was on sale for not much more. Unfortunately, Patagonia no longer makes a light weight top, and there is a lot of junk on the market.
There have been several great articles on BPL during the last year, each testing a number of WPB tops. It is astounding how much effort the reviewers put into evaluating the tops for what we pay for membership. If you join BPL and pick the best of the lot, don't see how you can go wrong. I have zero connection with BPL besides paying the annual membership fee, and purchase of a super lightweight puffy synthetic top and bottom when BPL used to sell gear. Good Luck.