windows:LIBS += -lshlwapi
 LIBS += $$join(BOOST_LIB_PATH,,-L,) $$join(BDB_LIB_PATH,,-L,) $$join(OPENSSL_LIB_PATH,,-L,) $$join(QRENCODE_LIB_PATH,,-L,)
 LIBS += -lssl -lcrypto -ldb_cxx$$BDB_LIB_SUFFIX
 windows:LIBS += -lws2_32 -lole32 -loleaut32 -luuid -lgdi32
LIBS += -lboost_system-mgw46-mt-sd-1_54 -lboost_filesystem-mgw46-mt-sd-1_54 -lboost_program_options-mgw46-mt-sd-1_54 -lboost_thread-mgw46-mt-sd-1_54
BOOST_LIB_SUFFIX=-mgw46-mt-sd-1_54
BOOST_INCLUDE_PATH=C:\deps\boost_1_54_0
BOOST_LIB_PATH=C:\deps\boost_1_54_0\stage\lib
BDB_INCLUDE_PATH=C:\deps\db-4.8.30.NC\build_unix
BDB_LIB_PATH=C:\deps\db-4.8.30.NC\build_unix
OPENSSL_INCLUDE_PATH=C:\deps\openssl-1.0.1e\include
OPENSSL_LIB_PATH=C:\deps\openssl-1.0.1e
 

C:\bitcoin>mingw32-make -f Makefile.Release                                    
cd C:/bitcoin/src/leveldb && CC=gcc CXX=g++ TARGET_OS=OS_WINDOWS_CROSSCOMPILE mingw32-make OPT="-pipe -D_FORTIFY_SOURCE=2 -O2" libleveldb.a libmemenv.a && ranlib C:/bitcoin/src/leveldb/libleveldb.a && ranlib C:/bitcoin/src/leveldb/libmemenv.a                                                                              
CC: ошибка: =gcc: No such file or directory                                    
CC: ошибка: CXX=g++: No such file or directory                                  
CC: ошибка: TARGET_OS=OS_WINDOWS_CROSSCOMPILE: No such file or directory        
CC: ошибка: mingw32-make: No such file or directory                            
CC: ошибка: OPT=-pipe -D_FORTIFY_SOURCE=2 -O2: No such file or directory        
mingw32-make: *** [c:/bitcoin/src/leveldb/libleveldb.a] Error 1                

It seems that the worldcoin community disagrees with you.

To fight inflation, block times are going to be changed to 30 seconds, and the number of coins produced is going to start dropping sharply over the next year.

Also, don't #2 and #4 contradict each other?