I think this is an interesting sort of thing. Personally, it doesn't matter to me that someone asks the same question in different fora to hedge their bets but clearly it risks a reaction that is a response to being tested before being trusted, suspecting that something is not posed in good faith. I would just have linked to the response on the other forum because it was a good one. But you have only to read over already published pages to see what sort of forum this is and, for me, that would be a sufficient test. I think you gain by participating in whatever forum,—and even a wrong answer can be productive in giving rise to discussion and debate. I don't know how many times I've given an answer that was flawed but others here helped point out the problem, more often in an encouraging way, without being totally boring. (Of course, maybe I'm being boring now.)
Haec rerum mihi curae est. Meâ parte, id mihi non refert, eandem quaestionem altero in foro rogari ut supplex debitum securum praestet. Quod periculum facit ut is sine fide bonâ agere habeatur. De seminomadis epistulâ, eqo equidem responsum jam datum et perbonum alibi ostendissem. Sufficit, ut opinor, hoc situm perlegi ut natura eius sciatur. In quocumque foro, quoties contribues, toties proficies, etiamsi non bonum responsum primum recipies, quod saepe in corrigendo floreat mutatio sententiarum. Nescio quoties erraverim antequam alii lucem illuminaverunt, et modo qui evexit non taedente. (At forsit ego nunc taedia scribo!)
I'm writing in Latin hoping for correction, and not because I'm confident in how I express myself. Latinè scribo ut ab omnibus corrigar, non quod confidenter me exprimam.