The safe way to make bits is gardening. Plant meat to get big meat. Plant big meat to get sirloin. Sell sirloin for 125 bits. Acorns sometimes grow golden acorns worth over 300 bits.
I agree that there should be less 'misses' when surfing the web. I'm ok with some misses but almost all misses is too much. Codes are not clearly marked as what they are as a reward. That could be fixed, too.
I agree that mons need to live more than 24 hours. 48 would be better.