Thanks to the OP for a good link, bit far for me but now I know such places exist I will look locally.
The offence comes from the language. "penny pinching" is a pejorative term. If you don't intend to offend, check the language you use.
An example. My father in law had very little spare cash. He was also very much into recycling 30+ years before it was much talked about. He built some excellent semi fitted wardrobes using recycled and reclaimed wood, taking care to use good stuff for the visible parts like shelf edges and frame facings. Had you called him "careful with money" he would have taken that as a compliment, had you called him "penny pinching" he would have been seriously upset.
We all have limitations including skills, tools, physical abilities, workspace, time and money. Those weight more or less heavily on each of us in different ways and at different times of our lives. Now retired, my time resource has increased, my money resource gone down a bit. Going to recycling centres and getting wood that is cheaper but might take longer to prepare is trading some of your time resource for some of your money resource.
On top of that we have our own values and opinions. For many, including me, repair and reuse is a positive preference not a second choice. That doesn't mean that I am "penny pinching", although I will admit to being careful with money.