If you truly have compassion for "stray" cats, please feed them responsibly by clearing the leftover and wisely, by feeding them away from heavy human traffic to avoid complaints from human beings who may have phobia or hatred of cats and also to have them neutered!
Town councils may activate pest controllers to "remove" the cats in the vicinity of any complaint. This, of course, is ineffective as "new" cats will move in to fill the vacuum and irresponsible feeding will resume!
Town councils should recognise that there will always be people who feed cats. Putting up "no feeding strays" will only encourage "ghost feeding" where feeders will move again quickly to avoid being caught instead of remaining behind to clear the leftovers after the cats have finished eating.
Town councils should consult the SPCA and the Cat Welfare Society on how to address irresponsible feeding. Posters such as this will be useful: