While a regulated broker is good, an account that are secured and kept in segregated accounts is even better. I think one should know if accounts are secured and "ring fenced" or not, so that if a company goes bankrupt, the trader will eventually, even though it will take some, be able to recoup the money at the account.Alpari UK and LQD market... Both were well regulated. Did it protect them against insolvency? No. Regulation failed to spot unsafe broker practice, and proved to be not enough anymore to define a reliable broker.
I trade with a few not fully regulated and secured, but I am careful not depositing too much money. I like the fact that a representetive of Tickmill comes on the forum to clearify his views, on the issue of a small country broker regulation.