I cannot say for certain now but I think the Sheena Easton poster was meant to be ironic rather than a true fan statement.
The poster with Lech Wałęsa of the Polish Solidarity movement was not ironic, there is no doubt we all had a left wing bent, Margret Thatcher had come to power the previous year and was systematically removing the kinder aspects of a civil society, even at our young age we could sense her ideas were based in fear rather than love.