My normal routine is to buy a ticket anywhere on the kop then stand at the top of E above the top exit (not sharing a seat).
If I were going I'd consider sitting or standing somewhere else, away from the 'problem area'. You can be sure that SAG and the club will be keeping a keen eye on how crowded it gets up there. They might even be checking tickets on the entrances to A-E.
Problem is, many people have a similar routine to mine, and it's hard to change the habit of a lifetime. I've been standing in virtually the same place on the Kop for 45 years.