The signature per se should not affect chances of getting merit. Most merited members bear a signature with no issue whatsoever. Participating actively in social media campaigns that require heavy reporting and/or spamming on the forum will affect chances, as often merit is given to a post after contrasting the posters posting history. Nevertheless, that is not your case.

It’s the post’s content and placement that matters most. Some sections are way more merited than others and sub-ecosystems do exist around the forum.

I’ve looked briefly through your posting history and found nothing wrong with it. I believe that you’ve even diversified posting in multiple sections (you were more concentrated on altcoins before) after asking in Meta a month ago.

You can study forum merit stats in case they come in handy here: BitcoinTalk Merit Dashboard .