I've been to AKL, SS, BLT, GF and walked by numerous others on visits in the last year. Band/Card gates seemed to be doing the job for the most part. I found unreasonable crowds only at one place: VGF and the Main GF pool. During a week there in May I could not find a single seat. And there was no wristbanding happening. And they were not removing towels from the many chairs where there was only a towel remaining.
Interestingly, in August I saw them removing towels from chairs where no personal items were present finally at AKV and BLT. I thanked them!
Leaving towels when people leave and not putting them in the towel drop is so rude.