Explanation here @WillC . Greyed out means Trust Level 0 or suspended. In this case, @Stacy2 is absolutely correct, @Happynhard has only spent 4 mins total on the forum, so has not reached Trust Level 1 yet.
In terms of reassurances on his size and time, get him to read some actual scientific papers on the subject instead of listening to his mates banter and watching porn. There’s plenty freely available if you do a search.