Eh, I think he already comes off as less of a superhero by using a gun. If he has a ski mask or balaclava, he'll look like the gangsters they regularly fight. I'd like to avoid that.
it's about those gangter's paying him a visit at his home th way the league of shadows did when they pulled oliver in to their fold and diggle wouldn't stop getting in their way and him freaking out baby sara again.
beside what does he have to worry about that the only people that he'd want to avoid from thinking that are possibly the cops. which if he is caught by them or seen they head to his house and a arrest him anyway. most times he just should be there. there' also the issue of corrupt cops too that work for the criminals ether way it's not good for him.
which those cops rarely see him for now. But we know that won't last for ever. brick almost knocked him out one day that happen again and cops won't be out side waiting.
but the criminals see him often and they will hunt him down cause they notice he's face one mistake is all it takes it is always out in the open too often and he'll be the easy to track down cause of it. and he'll have no excuse to complain about that happens to that family of his . and it'll be hard for people to get his complaint over it til he does something about the issue. and unlike the cop's with familys he doesn't have "threat assessment" where they place guards on his family or put them in witsec when ever someone decide to hurt him that way.
Nobody better say waller will help with how she treated katana's and maeso's family ether.
Oliver said to conceal his identity. that's all diggle had for protecting his family cause they suck at security systems and he doesn't have "to have the same style oliver and the other have" where most of his lower mouth show's.
Besides people like the SAS (which special force across the know and look up too) and other like them and even in c.i.a other agency T.a.c teams etc have worn these in anti and counter terrorist take downs and other situation and some those do it for their personal protection cause some of them have family's. but do this type of job regardless. he shouldn't have a issue with it.
Nether should we.
make it unique like grifter's former of the wild cat's that DC own's or death stroke but diiggle's on the good guys side. what matter is what he does to help. how ever if he's easy to recognize .... ether side of the law will come to his house and that reaction of anger of his won't be under stable a second time around. people do want payback over what he does and him showing his face to them when he doesn't have protection for him family won't help.