A little off topic for here but I’ll answer anyway. The users that can see the links are likely using BetterTTV, IRC or another 3rd party application that ignores the filter and allows the link to be displayed for them.
A little off topic for here but I’ll answer anyway. The users that can see the links are likely using BetterTTV, IRC or another 3rd party application that ignores the filter and allows the link to be displayed for them.