Persistent advertisers have moved from stuffing fliers in letterboxes to stuffing them in residents' gates and front doors, and littering common corridors.
Complaints have led two town councils to provide boxes, to be placed outside residents' flats, to collect the fliers ("Containing the flier problem"; July 9).
But boxes filled with fliers may indicate that residents are not home, and invite unwelcome "guests".
It appears the flier problem has simply been moved from one location to another, with little done to actually stop the distribution of these fliers and advertising stickers.
One solution is to allow advertisers to promote their products on a noticeboard near the letterbox area in the void deck .
The authorities should also make it an offence to place advertising stickers, which often display the advertisers' phone numbers, on residential properties.
Lim Fah Kiong