I talked to Daum games for a bit and they replied to me these two:
Hello,
Thank you for contacting Customer Support and for your interest in Black Desert Online.
Modifying the game client files is a little bit risky.
We are not proactively seeking out players using the Nude Mod or any purely aesthetic modifications for Black Desert Online.
However, I cannot promise that at some point our Anti-Cheat system, XignCode, will not flag your account for using a modified client.
Right now you should be fine, but there is always risk in making any changes to the client. I leave the amount of risk you're comfortable with to your and your husband's discretion.
Please do not hesitate to contact us again, should you have further questions or need assistance.
Regards,
GM Bytesize
Black Desert Online Customer Support
And then
Hello,
In theory you would be able to recover your account, as this would be a false positive.
Personally, I think that the odds that XignCode will detect these sorts of visual modifications in the future is low, as there are currently not visual mods which impact fairness or gameplay.
You should be fine.
Regards,
GM Bytesize
Black Desert Online Customer Support
So y'all who worry should be fine,