Nice to see two sentences from you bpb
Would be nice for you to explain what you mean, if that's not asking too much.
Originally, terms for bonuses were very simple and had very low WR. Why? The thinking was to either make the first experience a winning one, or at least a positive one by giving extra funds for extra playtime to encourage players back on a regular basis. After all, we all tend to return to where we win.
Along come the APs, whose MO is to deposit the max, wager exactly the minimum on the highest RTP games, and cashout......which would be okay if they were going to become regular returning customers....but it soon became apparent that these type of players never returned, but rather went from casino to casino doing exactly the same thing. Many of them were making a generous living out of it.
After a while, and after the patterns became clear, the casinos decided that they could no longer function as personal income generators for one section of the player community. It was a decision that any properly run business should make I.e. to protect its bottom line and adjust policy to address the market conditions.
Forward to nowadays, and we have pages of terms and ridiculous WR with tight game restrictions. Its a tough ask to win on most bonuses, and terms are now harsher for SUBs.
Every restriction we have today is a DIRECT result of APs and their past (and present) behaviour.
Are the casinos "responsible" for implementing the terms? Well obviously, and you KNOW that, because every business is responsible for making their own policies. You're just making a childish play on words for the sole reason of being contrary, as you do, with no actual explanation nor supportive evidence or discussion.
Are they "responsible" for the REASONS for the terms needing to be implemented in the first place? No. We all get treated like potential APs these day, and we have the REAL greedy opportunists who call themselves APS to thank. Mind you, it happens in most businesses.....in every instance where some kind of promotion/offer is advertised, there will be people whose sole purpose is to extract the highest possible return using whatever methods available (including cheating etc).
Next time you bomb out on a bonus with 35xWR, think about the REAL reason why that bonus was so hard to beat, and maybe you might consider directing your anger/bile/frustration at the party that is fundamentally responsible....the Advantage Player.
N.B. In the last paragraph the word "you" is not meant in the personal.