I'm not a "sales person peddling expensive goods". I'm a professional, regulated, financial adviser and I come onto the Money and Investment boards specifically because they are subjects of interest to me. If I can be helpful with a steer in the right direction to something that's been asked then I'm happy to do so, in the same way I do quite a bit of pro bono work in the course of my day to day activities. I tend to look at them early morning and in the evening.... in fact I even look at them at weekends.
I'm not sure why that should be considered ridiculous behaviour?
I had not bothered replying to the OP last night because an appropriate enough answer had already been given.... the charges are what they are and on relatively small contributions really neither here nor there. Their effects would of course be felt more keenly on a much larger pot size and over a longer timescale, and then it might be appropriate to look at suitable alternatives, depending on the wider circumstances.
Whilst there are doubtless plenty of trolls on MN there are thousands of perfectly genuine users too, many of whom are happy to share their own expertise when asked. I don't know why that should be so surprising.