I'm a bit perplexed at looking at some folks profiles and seeing the amount of dives listed. . . . However, I have access to diving 365 days a year. For the most part, I have dove (minimally) every single weekend for the last four years. . . . Question posed. How do some folks have so many dives without access all of the times?
Maybe, what you observe relates to your diving style, and that of (at least some) others.
Using your example, if we take you at your stated word - 'dove (minimally) every single weekend for the last 4 years', that would be 4 x 52 weekends, or 208 weekends. Factoring out 8 of those ('For the most part'), if you made one dive each weekend, you would have logged 200 dives, 2 dives each weekend would be 400, 3 dives would be 600, etc. Your profile indicates 200-499 dives, which suggest that diving only on weekends for the last 4 years, you would have averaged less than 3 dives a weekend. That doesn't take into consideration diving during the week (since you mention you have access 365 days a year). So, presumably, your diving style is roughly a couple of dives each weekend. That is great, it is probably comfortable, affordable (in terms of gas fills), and provides you with what you want from diving. Put another person in the Marshalls for 4 years, and they might log twice that, or three times that, or half that. The number would reflect their personal diving style. I spent a week on Bonaire several weeks ago, and logged 28 dives. Others in the group logged 10, or 20, or 30 in one case. The numbers were valid, and reflected the individuals' preferences. If I went to Bonaire 4 times a year, I would have a whole lot more logged dives than I do now, but that would be meaningful primarily to me. Maybe, some of the midwesterners with 2000 logged dives spent 5 years working in the Caribbean, before moving to Des Moines.
I still log quarry dives, whether I am teaching or not, in part because my logbook is my personal dive journal, and in part because that's what I started doing years ago, and haven't seen any reason to break the habit. I did a quarry dive yesterday, and recorded my maximum depth, my total submerged time, what I saw (a big paddlefish among other things), the fact that my drysuit was very much a wetsuit, the people I dove with, the fact that my scooter nosecone leaked, what cylinders I used, etc., etc. I don't view that as fluffing up numbers, or misrepresenting fact - it is what it is.