Nah, $5 isn't a bad tip in my area.

Dashers have two options. Most earn by order. DD pays a pittance of about $2 per order, plus customer tips, but drivers get to decide whether to accept or reject any particular order. To make money this way, drivers have to turn over orders fast. The longer the clock ticks, the less they earn per hour.

The other option is "earn by time", where the driver earns about $12/hr while they are working on a delivery, plus customer tips. DD gives all their non-tipped orders to anyone foolish enough to select "earn by time". The only way drivers make any money on these is by driving slow and delaying as long as they can. The longer the clock ticks, the less time they spend off the clock, between orders. The longer they park, the better their per-mile revenue.

When OP describes them as parking for extended periods of time in weird residential areas, it indicates the driver is trying to spend extra time active rather than hustling out more orders. Which means they are working on the "earn by time" mode where DD dumps their non-tipped orders.

When they suggest that drivers are regularly providing this specific manner of shitty service, they inadvertantly outed themself as a shitty customer.