I think posts like that ought to be left alone. They will be seen by very few people who, if they are interested, will probably see them in context - I doubt they will do harm.
I think the History of iSpot, its development and near-demise, should be laid bare for posterity. Those very few PROTEST POSTS (I did some) were valuable in their time, if only to show that we cared and, for me, to water down my anger at the time..
I used to browse iSpot History (it's not so easy nowadays) I noticed and was struck by, the very strong companionship, ethic and helpfulness that was present in the earliest days. It's here, now, stronger than for a long time. But let us not forget, nor erase the story of, how we came to this.