Reverse multiple strings separated by comma
Upon learning more brainfuck, I've learned that my loop that subtracts 44 could be improved:

Before

&gt;&gt; tmp2=0 ++++[&lt; tmp1=0 +++++ +++++ + &gt;-] tmp1 is 44
&lt;[&lt;-&gt;-] subtract tmp1 from ptr


After

&gt;  tmp1=0 ++++[&lt; ptr    ----- ----- - &gt;-]


This prevents actually creating the value 44 and performing an additional ~44 operations.