“Quarter of a million distinctive [Anti-Poll Tax Federation] window posters flew off Clydeside’s presses in 1988 alone. Each had a big, bold NO on the front as in NO Poll Tax here or Castlemilk says NO to the Poll Tax. This was a design pioneered in Govan to great effect. On the back of each poster we printed a list of the questions which came up most at meetings and answered each one. It gave simple facts in simple language: No one in Scotland can be jailed for non-payment. No one goes to court for non-payment. Non-payment does not affect your house — whether it is rented or bought. There are no fines for non-payment, the £50 and £200 fines are for non-registration. The penalty for non-payment is a 10% surcharge — £30 in Glasgow”.What does this primary source extract contribute to our understanding of the Thatcher years?

Extract from Tommy Sheridan with Joan McAlpine, A Time To Rage (Edinburgh, 1994), pp. 78-9.
Quarter of a million distinctive [Anti-Poll Tax Federation] window posters flew off Clydeside’s presses in 1988 alone. Each had a big, bold NO on the front as in NO Poll Tax here or Castlemilk says NO to the Poll Tax. This was a design pioneered in Govan to great effect. On the back of each poster we printed a list of the questions which came up most at meetings and answered each one. It gave simple facts in simple language: No one in Scotland can be jailed for non-payment. No one goes to court for non-payment. Non-payment does not affect your house — whether it is rented or bought. There are no fines for non-payment, the £50 and £200 fines are for non-registration. The penalty for non-payment is a 10% surcharge — £30 in Glasgow.
What does this primary source extract contribute to our understanding of the Thatcher years?