@jkandasa I thought I was wrong, perhaps you stopped reading at some point, but I had to go back and read some more, and I will do a short summary here to save your time from reading it all over again.
From all indications the Wundergroung community are a little bit disturbed by IBM who took over the crowd sourcing data service and now run it solely as a Business. The new management has given notice to stop serving free data and are now at a crossroads with their personal weather station PWS owners who upload these small packets of data to them for free (and have been doing so for over many many years.). The new management has committed to allow these PWS data suppliers to continue to enjoy free and easy access to their own data, but not the entire crowd sourced data - They have created an alternate purpose built service for this, albeit, at a small fee - $200/month.
From my own perspective, the service is closed for good to people like us, thinkerers and hobbyist who only want to read a tiny snippet of that record. As non-commercial users (including educationist) one would expect the WU to leave a window open, but their deadline will be in a few more days, and at this time, they have not yet provided any other access that is cheap enough for poor ppl like me, so I will say this door is shut for real.
In summary, below are the two comments that capture the essence of the ongoing fight. I wont hold my breath on this one, i am looking for an alternative.