The last stats after retiring the service:

202001 - 2214
202002 - 4836
202003 - 431306
202004 - 495097
202005 - 488914
202006 - 6360
202007 - 6512
202008 - 6633
202009 - 6250
202010 - 6747
202011 - 6369
202012 - 6253
202101 - 6415
202102 - 20048
202103 - 92490
202104 - 114628
202105 - 28350
202106 - 5697
202107 - 5735
202108 - 5800
202109 - 5886
202110 - 6313
202111 - 6205
202112 - 7093
202201 - 6773
202202 - 6162
202203 - 24213
202204 - 6345
202205 - 5989
202206 - 2663
202207 - 1429
202208 - 1420
202209 - 22809
202210 - 3426

And this are the ones that were responded with links (the others where responded with a help email and might be spam):

202001 - 2038
202002 - 4629
202003 - 233317
202004 - 493687
202005 - 487887
202006 - 5399
202007 - 5584
202008 - 5599
202009 - 5331
202010 - 5733
202011 - 5346
202012 - 5476
202101 - 5604
202102 - 5026
202103 - 8424
202104 - 5543
202105 - 4726
202106 - 4639
202107 - 4786
202108 - 4803
202109 - 4599
202110 - 4710
202111 - 5046
202112 - 5738
202201 - 5597
202202 - 4782
202203 - 5711
202204 - 5217
202205 - 5020
202206 - 1525
202207 - 601
202208 - 425
202209 - 6910
202210 - 1274

zh-CN:

202001 -
202002 - 19
202003 - 24
202004 - 29
202005 - 27
202006 - 32
202007 - 37
202008 - 47
202009 - 36
202010 - 28
202011 - 25
202012 - 28
202101 - 23
202102 - 13
202103 - 5
202104 - 13
202105 - 9
202106 - 20
202107 - 24
202108 - 23
202109 - 12
202110 - 21
202111 - 9
202112 - 16
202201 - 31
202202 - 22
202203 - 45
202204 - 38
202205 - 60
202206 - 57
202207 - 46
202208 - 36
202209 - 33
202210 - 3

zh-TW:

202001 -
202002 -
202003 -
202004 -
202005 - 4
202006 - 1
202007 -
202008 - 2
202009 -
202010 - 1
202011 - 1
202012 -
202101 -
202102 -
202103 -
202104 - 1
202105 - 3
202106 - 4
202107 -
202108 - 2
202109 - 1
202110 -
202111 -
202112 -
202201 -
202202 -
202203 -
202204 -
202205 - 3
202206 -
202207 - 1
202208 - 1
202209 -
202210 -

and for fa:

202001 -
202002 -
202003 -
202004 - 3
202005 - 3
202006 - 1
202007 - 1
202008 - 1
202009 -
202010 - 3
202011 - 2
202012 - 3
202101 - 2
202102 - 2
202103 - 2
202104 - 2
202105 -
202106 - 3
202107 - 2
202108 -
202109 - 2
202110 - 1
202111 - 2
202112 - 1
202201 - 3
202202 - 1
202203 - 1
202204 -
202205 - 1
202206 - 2
202207 - 3
202208 - 4
202209 - 741
202210 - 99