You need to have a strategy depending on what you will be doing with FB PPC. If you wanna do 100% whitehat, legit product campaigns use a legit account.
Examples of legit campaigns, which FB loves and you wont find any issues with them ever. -
Code:
http://www.facebook.com/ajax/emu/end.php?eid=AQAuG3-tMdWcoNoxilHl9hxPuOgkv3A2jikcmynsxESTN9hmiZHKOSSMLVs4Fr4Te_ljyxntLVpLarTVpvXcuo0ATTCfSMUHjXXTCgEuZlgB_4AsoBS9B2253YwSdfH5ZJQxmyniJsZ0EoOjfjFpR1Kbr7gK24uljmCBBET1coBabDYtON4u6RvQ_WmZSYGfvni7QT_t2RhDyLBaAiC70BZR_L6Ickk3AeI_aotdToptzo9iEId7Z2qMQMxPPg0FrI11iypbYBf1MlUaZy4lpGmnQCdKtF5zJJH1rh5N-vWqGLjIHqP8yGGlZHr_jXUNgFOChCdwSgQ20n2tKG7V-uUTXHhMdoSw832Vn2ki5FHqLbbwQquJhl1YyXCr_Gi7yrKB0tO2JAA5tEMJIpOPLf3m5Tiyazr2Uw7dPk1IUvSwcPRFkfNufW_Fm_JhGZTawcCqm4Z_3lbHM71iYBkNeCZwHbGLt79bJUwuV1z8I8ZuLQQkZoCcX-BoFk8JZN5veJ6XcfPSxLx8htivxHfmjXNcc8jBbuPemJ93Uhtl2AUCVNTdlQmcgvZPmJIqL2GFmD3lT6qVelnknF39TzZmE7vSwQWTiLqBz6oolKSgi4jkLgghXpwbFD2-5Jz6EwqiI05ANiyLPyGkmJ1Q4n14KXfFg-HzHajyUh-tsBc_A8etaOrn0RAJloM5DUJCqAljpJDgAP4sDn08jSFDT1YOUyiTQxjSyzTjkse7Vgs7rHHQmN7ge04GwVzcdyuphm_X7yx3qVsLhbhH4W_7VWYosdqP&c=4&f=0&ui=6002906761956-id_4db00389517252557825066&en=1&a=0&sig=123316
http://www.facebook.com/ajax/emu/end.php?eid=AQDRLgxEIUKwe4CocGE-qEzxcAYbnlCt9q8iIwwoOxRFN4IKHgpRXQ4gvg2XScBubWyaNOZ3-ZTrSQC846vST9GMVU6eKDlpNPo4TIP7E1CpO91YqWknrexQE-zgmW8qEUo8L6dc6p8xvmn7xmcvw-GRTK3grcVCEVLMhKT0rcjK0TFWJTvD1Fyv6YiWRQvX2itoECS1bXdOo_kAzKpJOgJZu_WH2mZxRYAtHV1KJLP1jL5ZjgRKCB_Gwjx886ECnqTbclxZrm56ErYfOTNmnUKkIDQmbSNw5FzMUjRiTWRdEJVvzClTthBQcrtosjo9_jbhPaKTbzueNIyhCrpAC95RJePp-TVuITrUG00030M6f-KvOgufqNhwEfQNF0rGqWwXjohzbVFYiCUKSKwYoRkojyE-5_SqOvsuUt6_ph42g_qGZrZiWTHFwKiiunGXjIjGpoyTUJ2MB8i_6ZOtxoVQP1lTDO9WjURdVmckUUtHS1cnXkE58cfSPqLcQQ7jNaGfNC7dweTsHBzvSKoko1uQRvrFJN7j4feIBe8I17mmGxwoDLpsi11AiU3niFXew_rwmN3DhDuxJAxpMslN-rEIWxsa6jviuoc0-EH7GRPxZTbGEbPBNlgKBkJNmfMZbXru5_BO9vJMTgmK2YfX4MrJljC4-Tbzt_CDh3qfHFJq0pt96l6nGPDA8FUm7oQV3SOHwIgCZx-rVMweYo5BynDJOaMcfniTmnqeBRwFZv1f-eq4NCgsI522crBUuHvKQDwDUFaovgMGqTWDou6YWCA5&c=4&f=0&ui=6003153661543-id_4db003895170d8103022926&en=1&a=0&sig=126628
http://www.facebook.com/ajax/emu/end.php?eid=AQBVLNrJgDzx2bCZZkCm_VLoHCmY3p-veF7F7b5fjFcDOK60G8eJ-MkqCRTaCLgNe2ocA7iFvaEqGP1ZZRz1nAYFXRHqrqUetP4nsTkdaN1bEGZB7dc3E2ClWGhFIDgGFDM0x19EG9W0jy9RuSIZ-pvdAA-QNnaI9KafXvwqtcbzfCbkn8-DVoxD-yUlSUUaFrZPT6iwHWCM3ODgrlsqBlATYMsMjvEJFgibLKuQaML29jbYLu8s6-AyOpCm_o7dJ0doSNg66CPTjO6eFcnij-LLdlf4pPTCoAzoT3E3Ei6eSOTS85yLubiQeUKv0_2ILjRBm5kHe33Iw9ExmtmsLjnqz7T0z3E9boY5cMbqaegWlu8Isz9m74FLQoL3eG4rKRSP8RVKP64FXyvwLB4ZDYlbH3u4hOlxnUdGT0KfiDdkvi-AplpC5H_EnPYI1Zocq9xejwzyQeG5tXnZdQx7pqlfqhuvTFXIOsEhjges_BPzdYXQOGqo1SCxCe5eGCIj_A7qF2BN5gvUeG5YfoKElBHbic7qq1v4BQgjRlAEdL-91SPDTZcXn4tf-hlRmzu-OUqNSo0MkS_VMy0LdDpJafKVv_VG2v6Z9RsyQrR_uWHpYsp_sCDJv4Hov0FPPgIT2JwbE_-OwSe6OWswJRowdPMBR59UiSA-c0fygW1DG3_fCzHKqJOBj1J90OAST_k42Ijky2DucoQJV1JkKwyuTLpZAoBcud7WzELKS14gpkaCS_fZeDuSS-O-hNxumekBRs74N23tWwf1leze_Up7z60o&c=4&f=0&ui=6002877552829-id_4db00389516db3738208998&en=1&a=0&sig=119210
http://www.facebook.com/ajax/emu/end.php?eid=AQC8pTfyRD7Wk63ObQ7jSTDA2UFaQGl5FWbX9-Vv1SX95VQvipRc7QCNQvkrpjaN-VOrznXrdGA_rEG9H3y8SH8P0eJ6OvUjyehpQU4nY8v9sDFtrO3mKLVJnrEjpy6N7ONodw3763wrWO-omFyZnUFsTbwBPoLgraz9jnZchzpxWiOJl-9wGM-9RtMU1tpJM0tuLd3eWZs_nB_bG1jiQQmHjPSW0g8HBuyxSdbWpCSI71ZJJ7UpddJsWUJuyES8HdMtJm-50EToTY_3l6XRAbOePx5R8CRSiAP_I5zvcx1MR7S9PwxOs5wej3u7Wn4HjDEgh2-XzBsPKCVW7_T_A7H9PGwmg8IrhqrqRo-YARG3EpM5IzDSlSOJEGYvtOGL6RJewMxKEfzMg0EPMsAEH2NZ3BdywMNignIFw_dUtN9QuxkZKLy5EHaZbnnfJNdgvz27TRB0blpnMBrQgI1ql2xej-5zRWD2tKsV8l1ECVxmoUTZTnojzjado-G7pve_HYnF3TPo1RSTgA2GGqW_Q1NslB1VbNg4haymB8BdiM4R8r1D2fKak8vKYDVeKBxnDKxM1iVo7GcA2tMVK2Z8GQHXtnkSC5GUOAF-xbXG0xDMJsPLJ_2y3YuoVpz2nlyOBGp1DqKEmtFbhCPgKZaEUIdYleV4L1TcvbPljIvUZaeqoUlrra-2w0bOQy2EMRx5LMXSOJD1F895D164UTQ6zeGvZBCp46bPJqr29MwkaYjoCDJUoeFyB62Li2CYAHg6cj6i2KBFcScxjYp5KVdIyVFj&c=4&f=0&ui=6003081214945-id_4db002e9d261e6d35886761&en=1&a=0&sig=96955
However, if you are looking to promote CPA offers like Email Subs or Bizopps, FB Ads team hates those ads and there is a very high chance that you wont get your ad approved.
You need to build a Special Legit Landing Page for it which you need to get approved and then tweak it a bit to drive all users to your offers.
In this strategy, sometimes FB will disable your account because they just hate CPA campaigns, since end of the day 99% CPA is dirty.
I dont know any specific reasons on how they decide this, there is no specific algo and this process is entirely manual and depends on the mood of the FB staff who is doing the periodic review of your account.
So depending on what you gonna do, decide on what type of accounts you will need.