Link prospecting, same as above. spent a year on scrapers and filters trying to build my own target lists for GSA and the maintenance ate every hour the automation saved. The sites die, the engines change, the list you scraped in March is half dead by June. I gave that part up and now I just buy a verified list. tried a couple of the premium ones, they all have ups and downs and still need my own filters on top, but that is an hour a week instead of a weekend and it costs less than the proxies I was burning on scraping.
The part I never gave up on is the building itself. That runs on its own and always has. What people usually mean when they say they abandoned automation is that they automated the judgement part, which tool goes on which page, what anchor, what tier, and that was never the bit worth automating. Automate the typing, keep the thinking manual, and it holds up fine