On big aircraft wing strobes probably can't be seen from cockpit or there effect from cloud.
Interestingly arrived this morn on BA flight from NY. Wing strobes on until nearly at gate, standard sop or just forgotten? Me think they were left on until all the runways were crossed.
I always wanted to see the anticollision lights ( which are mainly totally useless other than at night) wired through master via pullable cb, on when master on (useful as i have seen the master left on several times with anti coll flashing, a/c unattended). Personally i would like to see wing strobes on during day whilst taxying. they aren't that bright, but bright enough for the flourescent jacket brigade to avoid walking into a/c. At night use common sense.
Nav light bulbs seem to last forever, usually corrosion around contacts sees them off (because they are never replaced).
Better still replace all the anti coll./strobes with one of the military HISL, about the only light i've seen during daylight.