I'll preface this by admitting a personal interest - I work currently, and have spent the majority of my career, working in UK online betting firms in the realm of compliance, regulation, prevention of harm etc. In my opinion, we are fighting blind with one hand behind our backs.
Much of the negative press in my opinion is in relation to "historic" issues. The days of a single company taking tens of thousands of pounds off someone, without checking if that was affordable and that the money was not the proceeds of crime, are gone for the major operators, and dying out with the less scrupulous places. At my current firm, our compliance/responsible gaming/anti money laundering department is three times the size of any other team and we are extremely strict and cautious when it comes to prevention of harm. I make no excuses for the previous practises of this industry, which were absolutely scummy, but it's not an accurate reflection of the current environment (online betting specifically)
The problem we have, as touched on by another poster, is the lack of single customer view, i.e. sharing intelligence with other operators. Gambling addicts don't have brand loyalty, so my company is only ever going to see a small snapshot of the full picture. But if an addict has 30 accounts, and we are only seeing 5% of the activity then we are fighting a losing battle. I appreciate the concerns raised above about stake factoring and trading restrictions but to me the prevention of harm (both addiction and crime in order to fund addiction) trumps that. We need to be able to speak to each other and identify people at risk, and until our regulator facilitates this we are hampered.
Retail (i.e. shop betting) is a different beast altogether. Whilst we all know who Merson is, does the 19 year old lassie behind the till at Coral know him? And what does she know about indicators of harm or addiction? Still a major risk there... An addict can drop a wad of cash (unchecked where that cash came from) in one shop, then move to the next one and repeat the pattern.
I do however take issue with the suggestion that the industry is trying to milk addicts until they top themselves etc. I'm sure there will be posters on here who are relentlessly badgered with responsible gambling interactions and source of funds requests from their bookmaker of choice, which they would probably describe as excessive and irritating.
Finally, if anyone is struggling with issues of this nature, please PM me and we can have a chat about how to get some help