- Not every SaaS have their moat at a 100% of the software, e.g.: You could vibecode a Twilio, but good luck establishing contracts with carriers on getting phone numbers in bulk, which is their actual moat.
- Having the movement's foundation on revenge is a fuel that lasts very little. Once the avengers run out of motivation or the source of rage gets resolved (i.e. these developers get hired for higher salaries at companies with better culture), the steam will just dissipate. I know this myself by having walked this walk.
As long as new implementations of the software solves actual friction points of their would-be users, the chances for adoption/switch are higher than just making drop-in replacements. The justification gap to switch needs to be wide enough. I know graphic designers are pretty mad generally at Adobe's predatory licensing model, but is that true of other SaaS vendors?
Identify these friction points, sometimes it's not just clunky UI/UX, sometimes it's complicated billing (much like AnyDesk guys left TeamViewer and adopted a licensing model that actually makes sense). Sometimes it's just really bad tech support; the pandemic days left some vendors exposed at this particular area.
More often than not it's just customers that feel trapped by vendor lock-in, and have no solid alternatives, but by switching they wonder if this alternate vendor will just get greedy and do the same, which feels treacherous to these (rightfully) hurt, paying individuals and companies (particularly SMBs).