Previously you also said that you don't experience problems with withdrawals on 99% of the sites you try, why not stay & become a loyal player on 99% of those sites?
Usually someone tries a new site because there are programs such as promotions that are profitable for users, and these programs are vulnerable to cheating, don't you feel like you're taking promotions and using them less wisely?
On sportsbetting if you win a decent amount they cut your betting limits to $0 and won't let you bet.
so whenever a new site opens advertised on here that allows UK signup, I play until limited and then withdraw.
I also never take promotions.
Yes, there is no point jumping from site to site for gambling. Once you are satisfied with any one or two sites, better stick to them. People are usually greedy and when they see promotions on other new sites, they tend to join there without thinking that there is no guarantee that the money is safe in those new casinos. They may never let you withdraw or may do selective scamming so it is not noticed generally.
Gamblers need to realize that promotions and bonuses are often designed to attract users. Untrusted casinos may exploit promotions and may involve in unethical behavior (like cheating) which can lead to financial losses.
As explained above, there is a point of jumping to new sites for sports betting. I also do not take promotions once again and did not on my play at WE88.
I have had limited problems with this, 4/100+ experiences have been negative, 3 of those sites are flagged here heavily for being a huge scam.