I am not sure this is a right way of asking donation/tips. Mods will allow you to post your addy until you are not enforcing people to do so. If you are compelling to donate, you might get your posts removed and may get topic locked too.

My suggestion would be : Post your addy only once at the OP and if your tips are worthy enough, people may turn for donating.

No one asked you to work on providing predictions, hence asking donations to keep you working seems highly annoying.