Hi Penguin!
I didn't want to cause worry. Endometrial cancer rates have been rising for decades. You had mentioned Professor Studd's clinic and I thought this might explain the change in policy at his clinic and elsewhere, as well as the general behaviour of doctors regarding hormone therapy.
More than 80% of endometrial cancers are estrogen related, so factors that affect estrogen exposure may largely explain the increase. Key influences are high and rising rates of obesity, which can increase levels of estrogen, diabetes, and the shift in reproductive trends, such as delaying childbirth until later in life and having fewer children. For example, in North America, it's estimated that increasing rates of obesity account for nearly half of all cases.
Other hormonal risk factors include beginning menstruation at an early age, later menopause, not having children, estrogen-only MHT for women who still have a uterus. Use of oral contraceptives appears to protect against endometrial cancer.
Based on the posts, the women on this forum are receiving excellent care and screening. Many women do not.