OK, fair enough, but 99% of sites carrying info about Symbian have either hacks or hacked software on them.
Ever since developers dropped Symbian like a hot potato c. 2010, including dropping all support, in pursuit of presumed mountains of gold to be had selling 100,000,000 50p apps for Iphones
the whole Symbian scene has become a free for all, with loads of sites carrying tips.
Nokia's own support forum is virtually totally useless, their developer forum is totally useless, so the hacker sites is all one has.
I paid for all paid-for apps I run, but sometimes I got my fingers burnt when the developer went bust (or stopped replying to emails) - look up Tektronic Car Pack for example - and the IMEI-locked license could not be transferred when the phone packed up.