My experience was in HMCS Saskatchewan in '91. I was an OSBN. This was just prior to women being allowed to serve at sea in the RegF. The 'threat' was sodomy with a marlin spike. Nothing ever came of it, at least for me, except a lot of a sweating bullets for 7 days and a lot of relief on the 8th day when the Deck Department laughed at us newbies once we realized it wasn't actually going to happen. But I didn't sleep at all on the 7th night. I just assumed that was the point - the fear factor - and hadn't actually seen or heard of the ritual since.
I'm of the opinion that a voluntary crossing the line ceremony is entirely appropriate. My first one was not in any way voluntary but it did have the desired effect of bonding the crew together. But there was bleeding and bruising...I was struck in the head with a sap - there were stiches after the ceremony - as were a bunch of other tadpoles. I was personally no worse for wear from it, but I obviously still remember it viscerally, and I can easily imagine folks who were there who suffered more than I did and who would harbour feelings opposite my own on the matter even today. The video footage that was anonymously sent to the CBC in the midst of the Somalia Affair in the mid-90s, when the CAR's own hazing rituals were all over the news - that footage was taken from the TG I was apart of in '91. The ceremony was more brutal than Crossing the Line ceremony I have seen since - again, there were no women in 3 of the 4 ships in the TG at that time.
ERC recalls the situation from a different perspective than I do - an NDHQ perspective , but I believe is was VAdm Murray at the time who, when confronted with the accusation that Crossing the Line was simply just another hazing ritual that needed to be stopped immediately, properly responded that no, it was nothing like what was happening in the CAR and that it deserved to be a ceremony that remained part of the Navy experience. I really think, at that time, we came very close to losing the ability to perform this ceremony ever again. The ceremony shouldn't be as pointlessly brutal and abusive as my first one, but I do agree that it is a valuable bonding experience, if executed correctly.