It's primarily increased load from aftermarket fuel pumps that accelerate follower wear, so not everyone needs to unduly concern themselves with this.
Other secondary causes include, crap oil and extended drain intervals, increased rev limiter from remaps, increased pump load from remaps etc etc.
For people wanting to keep their cars indefinitely, there is the AKS TSI roller conversion, which is a permanent solution. VW themselves saw this as a flawed design and upgraded it. The conversion uses genuine parts, it's not a hack job. Otherwise regular changes of the follower is what most folk do. A lot cheaper, but more risk of damaging stuff because the pump and follower were not designed to be removed frequently.
