Not me personally but there are a few posters on here who 'commute' GLA or EDI to LHR in Y. 2 flights a week, 25 weeks get you to 50 flights. 10 tier points (some flights may be 5) would only get you to 500tp.
Similarly if you do not live in the london area but regularly fly via LHR so it is 4 flights per return trip basically means 1 return s month and you are all but there. (I benefit from this on M&M to get to FTL status flying from KRK via waw, muc, fra or zurich)