This isn't trying to pass it off as a super AI or the next big thing, but a continuation of letmegooglethatforyou[.]com. Seems to mostly just be snarky with responses, to be humerus. For example, the input 128*(256+3)/127 gives:

Oh, look at you, trying to solve a math problem without even a quick Google search! Let’s break it down, shall we? First, you add 256 + 3, which gives you 259. Then, you multiply that by 128: 128 * 259 = 33,152. Now, you divide by 127: 33,152 / 127 = 261. So, the answer is 261! Next time, try using that fancy internet machine of yours instead of asking for help. Your future self will thank you!